JavaScript Reference

Alphabetical JavaScript Reference

Property/Method	Belongs To	Description
abs()	Math	Returns the absolute value of x
abs()	Duration	Returns a Duration with the absolute value of a Duration
accessKey	HTML Element	Sets or returns the accesskey attribute of an element
acos()	Math	Returns the arccosine of x in radians
acosh()	Math	Returns the hyperbolic arccosine of x
activeElement	HTML Document	Returns the currently focused element in the document
add()	Duration	Returns a Duration with a Duration added
add()	Instant	Returns an Instant with a Duration added
add()	PlainDate	Returns a PlainDate with a Duration added
add()	PlainDateTime	Returns a PlainDateTime with a Duration added
add()	PlainTime	Returns a PlainTime with a Duration added
add()	PlainYearMonth	Returns a PlainYearMonth with a Duration added
add()	Set	Adds a new element to a det
add()	ZonedDateTime	Adds a Duration to a ZonedDateTime
add()	DOMTokenList	Adds one (or more) tokens to a DOMTokenList
addEventListener()	HTML Document	Attaches an event handler to a document
addEventListener()	HTML Element	Attaches an event handler to an element
adoptNode()	HTML Document	Adopts a node from another document
after()	HTML Element	Inserts one or more nodes (elements) or strings after an element
alert()	Window Object	Displays an alert box with a message and an OK button
all()	Promise	Returns a single Promise from a list of promises, when all promises fulfill
allSettled()	Promise	Returns a single Promise from a list of promises, when all promises are settled
altKey	MouseEvent KeyboardEvent TouchEvent	Returns whether the "ALT" key was pressed when the mouse event was triggered
anchors	HTML Document	Returns a collection of all <a> elements in the document that have a name attribute
animationName	AnimationEvent	Returns the name of the animation
any()	Promise	Returns a single Promise from a list of promises, when any promise fulfills
appCodeName	Navigator	Returns the code name of the browser
append()	HTML Element	Appends one or several nodes (element) or strings after the the last child of an element
appendChild()	HTML Element	Adds a new child node, to an element, as the last child node
applets	HTML Document	Returns a collection of all <applet> elements in the document
apply()	Function	Calls a function with a given this value
apply()	Proxy	A trap for the [[Call]] internal method
apply()	Reflect	Calls a function with arguments
appName	Navigator	Returns the name of the browser
appVersion	Navigator	Returns the version information of the browser
asin()	Math	Returns the arcsine of x, in radians
asinh()	Math	Returns the hyperbolic arcsine of x
assert()	Console	Writes an error message to the console if the assertion is false
assign()	Window Object	Loads a new document
assign()	Objects	Copies properties from an object(s) to a target object
at()	Array	Returns an indexed element from an array
at()	String	Returns an indexed element from a string
at()	Typed Array	Returns an indexed element from a typed array
addEventlistener()	Window Object	Attaches an event handler to a window
addEventListener()	HTML Elements	Attaches an event handler to an element
atan()	Math	Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians
atan2()	Math	Returns the arctangent of the quotient of its arguments
atanh()	Math	Returns the hyperbolic arctangent of x
atob()	Window Object	Decodes a base-64 encoded string
attributes	HTML Element	Returns a NamedNodeMap of an element's attributes
availHeight	Screen	Returns the height of the screen (excluding the Windows Taskbar)
availWidth	Screen	Returns the width of the screen (excluding the Windows Taskbar)
back()	History	Loads the previous URL in the history list
baseURI	HTML Document	Returns the absolute base URI of a document
before()	HTML Element	Inserts nodes (elements) immediately before an element
BigInt64Array	Typed Arrays	Typed array of 64-bit signed integers
BigUint64Array	Typed Arrays	Typed array of 64-bit un signed integers
bind()	Function	Returns a new Function with a specific value of this
blur()	HTML Element	Removes focus from an element
blur()	Window Object	Removes focus from a window
body	HTML Document	Sets or returns the document's body (the <body> element)
Boolean()	Boolean	Returns a Boolean
break	Statements	Exits a switch or a loop
btoa()	Window Object	Encodes a string in base-64
bubbles	Event	Returns whether or not a specific event is a bubbling event
button	MouseEvent	Returns which mouse button was pressed
buttons	MouseEvent	Returns which mouse buttons were pressed
byteLength	Typed Array	Returns the length (in bytes) of a typed array
byteOffset	Typed Array	Returns the offset of a typed array from the start of its ArrayBuffer
bytesPerElement	Typed Array	Returns the number of bytes used per element in a typed array
cancelable	Event	Returns whether or not an event can have its default action prevented
call()	Function	Calls a function with a given this value
catch()	Promise	A callback function to run when a promise is rejected
cause	Error	Sets or Returns the cause of an error
cbrt()	Math	Returns the cubic root of x
ceil()	Math	Returns x, rounded upwards to the nearest integer
changeTouches	TouchEvent	Returns a list of all the touch objects whose state changed between the previous touch and this touch
characterSet	HTML Document	Returns the character encoding for the document
charAt()	String	Returns the character at the specified index (position)
charCode	KeyboardEvent	Returns the Unicode character code of the key that triggered the onkeypress event
charCodeAt()	String	Returns the Unicode of the character at the specified index
charset	HTML Document	Deprecated. Use characterSet instead.
childElementCount	HTML Element	Returns the number of child elements an element has
childNodes	HTML Element	Returns a collection of an element's child nodes (including text and comment nodes)
children	HTML Element	Returns a collection of an element's child element (excluding text and comment nodes)
classList	HTML Element	Returns the class name(s) of an element
class	Statements	Declares a class
className	HTML Element	Sets or returns the value of the class attribute of an element
clear()	Console	Clears the console
clear()	API Storage	Clears (removes) all storage objects for this domain
clear()	Maps	Clears (removes) all elements from a map
clear()	Set	Clears (removes) all elements from a set
clearInterval()	Window Object	Clears a timer set with setInterval()
clearTimeout()	Window Object	Clears a timer set with setTimeout()
clearWatch()	Geolocation	Unregister location/error monitoring handlers previously installed using Geolocation.watchPosition()
click()	HTML Element	Simulates a mouse-click on an element
clientHeight	HTML Element	Returns the height of an element, including padding
clientLeft	HTML Element	Returns the width of the left border of an element
clientTop	HTML Element	Returns the width of the top border of an element
clientWidth	HTML Element	Returns the width of an element, including padding
clientX	MouseEvent TouchEvent	Returns the horizontal coordinate of the mouse pointer, relative to the current window, when the mouse event was triggered
clientY	MouseEvent TouchEvent	Returns the vertical coordinate of the mouse pointer, relative to the current window, when the mouse event was triggered
clipboardData	ClipboardData	Returns an object containing the data affected by the clipboard operation
cloneNode()	HTML Element	Creates a copy of a node, and returns the clone
closed	Window Object	Returns a boolean value indicating whether a window has been closed or not
close()	HTML Document	Closes a document
close()	Window Object	Closes a window
closest()	HTML Element	Searches up the DOM tree for the closest element which matches a specified CSS selector
clz32(x)	Math	Returns the number of leading zeros in a 32-bit binary representation of x
code	KeyboardEvent	Returns the code of the key that triggered the event
codePointAt()	String	Returns the Unicode value at an index (position) in a string
colorDepth	Screen	Returns the bit depth of the color palette for displaying images
compare DocumentPosition()	HTML Element	Compares the document position of two elements
compare()	Duration	Returns -1, 0, or 1 if a Duration is less than, equal, or grater than another
compare()	Instant	Returns -1, 0, or 1 if an Instant is before, equal, or later than another
compare()	PlainDate	Returns -1, 0, or 1 if a PlainDate is before, equal, or later than another
compare()	PlainDateTime	Returns -1, 0, or 1 if a PlainDateTime is before, equal, or later than another
compare()	PlainTime	Returns -1, 0, or 1 if a PlainTime is before, equal, or later than another
compare()	PlainYearMonth	Returns -1, 0, or 1 if a PlainYearMonth is before, equal, or later than another
compare()	ZonedDateTime	Returns -1, 0, or 1 if a ZonedDateTime is before, equal, or later than another
compile()	RegExp	Deprecated. Compiles a regular expression
composed	Event	Returns whether the event is composed or not
concat()	Array	Returns two or more joined arrays
concat()	String	Returns two or more joined strings
confirm()	Window Object	Displays a dialog box with a message and an OK and a Cancel button
const	Statements	Declares a variable with a constant value
construct()	Proxy	Traps the new operator
construct()	Reflect	Constructs a new object (acts like the new operator)
constructor()	Classes	Creates and initialize objects created within a class
constructor	Array	Returns the function that created the Array prototype
constructor	Boolean	Returns the function that created the Boolean prototype
constructor	Date	Returns the function that created the Date prototype
constructor	Number	Returns the function that created the Number prototype
constructor	Object	Returns the function that created the Object prototype
constructor	RegExp	Returns the function that created the RegExp prototype
constructor	String	Returns the function that created the String prototype
contains()	HTML Element	Returns true if a node is a descendant of a node
contains()	DOMTokenList	true if a DOMTokenList contains a class
contentEditable	HTML Element	Sets or returns whether the content of an element is editable or not
continue	Statements	Breaks one iteration (in the loop) if a specified condition occurs, and continues with the next iteration in the loop
console	Window Object	Returns a reference to the Console object
cookie	HTML Document	Returns all name/value pairs of cookies in the document
cookieEnabled	Navigator	Determines whether cookies are enabled in the browser
coordinates	Geolocation	Returns the position and altitude of the device on Earth
copyWithin()	Array	Copies array elements to another position in the array
copyWithin()	Typed Array	Copies typed array elements to another position in the array
cos(x)	Math	Returns the cosine of x (x is in radians)
cosh(x)	Math	Returns the hyperbolic cosine of x
count()	Console	Logs the number of times that this particular call to count() has been called
create()	Object	Returns an object created from an existing object
createAttribute()	HTML Document	Creates an attribute node
createComment()	HTML Document	Creates a Comment node with the specified text
create DocumentFragment()	HTML Document	Creates an empty DocumentFragment node
createElement()	HTML Document	Creates an element node
createEvent()	HTML Document Event	Creates a new event
createTextNode()	HTML Document	Creates a Text node
ctrlKey	MouseEvent KeyboardEvent TouchEvent	Returns whether the "CTRL" key was pressed when the mouse event was triggered
currentTarget	Event	Returns the element whose event listeners triggered the event
data	InputEvent	Returns the inserted characters
dataTransfer	DragEvent InputEvent	Returns an object containing the data being dragged/dropped, or inserted/deleted
debugger	Statements	Stops the execution of JavaScript, and calls (if available) the debugging function
decodeURI()	Global	Decodes a URI
decodeURIComponent()	Global	Decodes a URI component
defaultPrevented	Event	Returns whether or not the preventDefault() method was called for the event
defaultStatus	Window Object	Sets or returns the default text in the statusbar of a window
defaultView	HTML Document	Returns the window object associated with a document, or null if none is available.
defineProperties()	Object	Adds or changes properties
defineProperty()	Object	Adds or changes a property
defineProperty()	Proxy	Traps defineProperty()
defineProperty()	Reflect	Defines or modifies a property
delete	Objects	Deletes a property from an object
delete()	Map	Deletes an element from a map
delete()	Set	Deletes an element from a set
deleteProperty()	Proxy	Traps the delete operator
deleteProperty()	Reflect	Deletes a property from an object
deltaX	WheelEvent	Returns the horizontal scroll amount of a mouse wheel (x-axis)
deltaY	WheelEvent	Returns the vertical scroll amount of a mouse wheel (y-axis)
deltaZ	WheelEvent	Returns the scroll amount of a mouse wheel for the z-axis
deltaMode	WheelEvent	Returns a number that represents the unit of measurements for delta values (pixels, lines or pages)
designMode	HTML Document	Controls whether the entire document should be editable or not.
detail	Event	Returns a number that indicates how many times the mouse was clicked
difference()	Set	Returns the difference between two sets
dir	HTML Element	Sets or returns the value of the dir attribute of an element
dir()	Window Console	Displays a list of the properties of a JavaScript object
do ... while	Statements	Executes a block of statements and repeats the block while a condition is true
doctype	HTML Document	Returns the Document Type Declaration associated with the document
document	Window Object	Returns the Document object for the window
documentElement	HTML Document	Returns the Document Element of the document (the <html> element)
documentMode	HTML Document	Returns the mode used by the browser to render the document
documentURI	HTML Document	Sets or returns the location of the document
domain	HTML Document	Returns the domain name of the server that loaded the document
domConfig	HTML Documents	Deprecated.
dotAll	RegExp	Returns true if the s modifier is set in the expression
drop()	Iterator	Returns an iterator with a number of elements dropped
E	Math	Returns Euler's number (approx. 2.718)
elapsedTime	AnimationEvent	Returns the number of seconds an animation has been running
elapsedTime		Returns the number of seconds a transition has been running
embeds	HTML Document	Returns a collection of all <embed> elements the document
encodeURI()	Global	Encodes a URI
encodeURIComponent()	Global	Encodes a URI component
endsWith()	String	Checks whether a string ends with specified string/characters
entries()	Array	Returns an Iterator with the key/value pairs of an array
entries()	Maps	Returns an Iterator with the key/value pairs of a map
entries()	Objects	Returns an Iterator with the key/value pairs of an object
entries()	Sets	Returns an Iterator with the key/value pairs of a det
entries()	Typed Array	Returns an Iterator with the key/value pairs of an array
entries()	NodeList	Returns an Iterator with the key/value pairs a NodeList
entries()	DOMTokenList	Returns an Iterator with the key/value pairs of a DOMTokenList
EPSILON	Number	Returns the difference between 1 and the smallest number
equals()	Instant	Returns true if this Instant is equal to another Instant
equals()	PlainDate	Returns true if this PlainDate is equal to another PlainDate
equals()	PlainDateTime	Returns true if this PlainDateTime is equal to another
equals()	PlainMonthDay	Returns true if this PlainMonthDay is equal to another
equals()	PlainTime	Returns true if this PlainTime is equal to another PlainTime
equals()	PlainYearMonth	Returns true if this PlainYearMonth is equal to another PlainYearMonth
equals()	ZonedDateTime	Returns true if this ZonedDateTime is equal to another
error()	Console	Outputs an error message to the console
escape()	Global	Deprecated.Use encodeURI() instead
escape()	RegExp	Returns string where all regular expressions are escaped
eval()	Global	Evaluates a string and executes it as if it was script code
eventPhase	Event	Returns which phase of the event flow is currently being evaluated
every()	Array	Returns true if every element in an array pass a test
every()	Iterator	Returns true if every element in an Iterator pass a test
every()	Typed Array	Returns true if every element in a Typed Array pass a test
exec()	RegExp	Tests for a match in a string. Returns the first match
execCommand()	HTML Document	Invokes the specified clipboard operation on the element currently having focus.
exitFullscreen()	HTML Element	Cancels an element in fullscreen mode
exp(x)	Math	Returns the value of E^x
expm1(x)	Math	Returns the value of E^x minus 1
export		Export functions so they can be used for imports in external modules, and other scripts
extends	Classes	Extends a class (inherit)
f16round()	Math	Returns the nearest 16-bit floating point representation of a number
fill()	Array	Fills all elements in an array with a value
fill()	Typed Array	Fills all array elements with a value
filter()	Array	Creates a new Array with elements that pass a test
filter()	Iterator	Creates a new Iterator with elements that pass a test
filter()	Typed Array	Creates a new Typed Array with elements that pass a test
finally()	Promise	A callback function to run when a promise is settled
find()	Array	Returns the value of the first element in an array that pass a test
find()	Iterator	Returns the value of the first element that passes a test
find()	Typed Array	Returns the value of the first element that passes a test
findIndex()	Array	Returns the index of the first element in an array that pass a test
findIndex()	Typed Array	Returns the index of the first element that passes a test
findLast()	Array	Returns the value of the last element in an array that pass a test
findLast()	Typed Array	Returns the value of the last element that passes a test
findLastIndex()	Array	Returns the index of the last element in an array that pass a test
findLastIndex()	Typed Array	Returns the index of the last element that passes a test
firstChild	HTML Element	Returns the first child node of a node
firstElementChild	HTML Element	Returns the first child element of the specified element
flags	RegExp	Returns s sting with the flags set in the expression
flat()	Array	Concatenates sub-array elements
flatMap()	Array	Maps array elements and creates a new flat array
flatMap()	Iterators	Maps iterator elements and creates a new flat iterator
Float16Array	Typed Arrays	Typed array of 16-bit floating point numbers
Float32Array	Typed Arrays	Typed array of 32-bit floating point numbers
Float64Array	Typed Arrays	Typed array of 64-bit floating point numbers
floor()	Math	Returns x, rounded downwards to the nearest integer
focus()	HTML Element	Sets focus to an element
focus()	Window Object	Sets focus to a window
for	Statements	Marks a code block to execute if a condition is true
for ... in	Statements	Marks a code block to execute for each element of an object
for...of	Statements	Marks a code block to loop over the values of any iterable
forEach()	Array	Calls a function for each Array element
forEach()	Iterator	Calls a function for each Iterator element
forEach()	Map	Calls a function for each Map element
forEach()	Set	Calls a function for each Set element
forEach()	Typed Array	Calls a function for each Typed Array element
forEach()	NodeList	Calls a function for each NodeList element
forEach()	DOMTokenList	Calls a function for each DOMTokenList element
forms	HTML Document	Returns a collection of all <form> elements in the document
forward()	History	Loads the next URL in the history list
frameElement	Window Object	Returns the <iframe> element of the current window
frames	Window Object	Returns all <iframe> elements in the current window
freeze()	Object	Prevents any changes to an object
from()	Array	returns a new Array from an object
from()	Iterator	Returns an Iterator from any iterable
from()	Duration	Returns a Duration from a Duration or an ISO string
from()	Instant	Returns a Instant from an ISO string
fromEpochMilliseconds()	Instant	Returns an Instant object from a number of milliseconds
fromEpochNanoseconds()	Instant	Returns an Instant object from a number of nanoseconds
from()	PlainDate	Returns a PlainDate from an object or an ISO String
from()	PlainDateTime	Returns a PlainDateTime from an object or an ISO String
from()	PlainMonthDay	Returns a PlainMonthDay from an object or an ISO String
from()	PlainTime	Returns a PlainTime from an object or an ISO String
from()	PlainYearMonth	Returns a PlainYearMonth from an object or an ISO String
from()	Typed Array	Returns a Typed Array from any Object with a length property
from()	ZonedDateTime	Returns a ZonedDateTime from an object or an ISO String
fromCharCode()	String	Converts Unicode values to characters
fromEntries()	Object	Returns an object created from an iterable list of key/value pairs
fround()	Math	Returns the nearest float representation of a number
fullscreenElement	HTML Document	Returns the current element that is displayed in fullscreen mode
fullscreenEnabled()	HTML Document	Returns a boolean value indicating whether the document can be viewed in fullscreen mode
function	Statements	Declares a function
geolocation	Navigator	Returns a Geolocation object that can be used to locate the user's position
get()	Map	Gets the value of a key in a map
get()	Proxy	A trap for the internal [[Get]] method
get()	Reflect	A trap for the internal [[Get]] method
getAttribute()	HTML Element	Returns the specified attribute value of an element node
getAttributeNode()	HTML Element	Returns the specified attribute node
getBoundingClientRect()	HTML Element	Returns the size of an element and its position relative to the viewport
getComputedStyle()	Window Object	Gets the current computed CSS styles applied to an element
getCurrentPosition()	Geolocation	Returns the current position of the device
getCurrentPosition()	API Geolocation	Returns the current position of the device
getDate()	Date	Returns the day of the month (from 1-31)
getDay()	Date	Returns the day of the week (from 0-6)
getElementById()	HTML Document	Returns the element that has the ID attribute with the specified value
getElementsByClassName()	HTML Document	Returns a NodeList containing all elements with the specified class name
getElementsByClassName()	HTML Element	Returns a collection of all child elements with a given class name
getElementsBy Name()	HTML Document	Returns a NodeList containing all elements with a specified name
getElementsByTagName()	HTML Document	Returns a NodeList containing all elements with the specified tag name
getElementsByTagName()	HTML Element	Returns a collection of all child elements with a given tag name
getFullYear()	Date	Returns the year
getHours()	Date	Returns the hour (from 0-23)
getItem()	Storage	Returns the value of the specified key name
getMilliseconds()	Date	Returns the milliseconds (from 0-999)
getMinutes()	Date	Returns the minutes (from 0-59)
getModifierState()	MouseEvent	Returns an array containing target ranges that will be affected by the insertion/deletion
getMonth()	Date	Returns the month (from 0-11)
getNamedItem()	Attribute	Returns a specified attribute node from a NamedNodeMap
getOwnProperty Descriptor()	Proxy	Returns a property descriptor
getOwnProperty Descriptor()	Reflect	Returns a property descriptor
getOwn PropertyDescriptor()	Object	Returns the property descriptors of an object
getOwn PropertyDescriptors()	Object	Returns the property descriptors of an object
getOwn PropertyNames()	Object	Returns an array with the properties of an object
getPrototypeOf()	Proxy	Returns the prototype of an object
getPrototypeOf()	Reflect	Returns the prototype of an object
getSeconds()	Date	Returns the seconds (from 0-59)
getSelection()	Window Object	Returns a Selection object representing the range of text selected by the user
getTargetRanges()	InputEvent	Returns an array containing target ranges that will be affected by the insertion/deletion
getTime()	Date	Returns the number of milliseconds since midnight Jan 1 1970, and a specified date
getTimezoneOffset()	Date	Returns the time difference between UTC time and local time, in minutes
getTimeZoneTransition()	ZonedDateTime	Returns a ZonedDateTime representing the closest instant after or before the time zone's UTC offset changes.
getUTCDate()	Date	Returns the day of the month, according to universal time (from 1-31)
getUTCDay()	Date	Returns the day of the week, according to universal time (from 0-6)
getUTCFullYear()	Date	Returns the year, according to universal time
getUTCHours()	Date	Returns the hour, according to universal time (from 0-23)
getUTCMilliseconds()	Date	Returns the milliseconds, according to universal time (from 0-999)
getUTCMinutes()	Date	Returns the minutes, according to universal time (from 0-59)
getUTCMonth()	Date	Returns the month, according to universal time (from 0-11)
getUTCSeconds()	Date	Returns the seconds, according to universal time (from 0-59)
getYear()	Date	Deprecated. Use getFullYear() instead
global	RegExp	Checks whether the "g" modifier is set
go()	History	Loads a specific URL from the history list
group()	Console	Creates a new inline group in the console. This indents following console messages by an additional level, until console.groupEnd() is called
groupBy()	Map	Groups iterable elements using values returned from a function
groupBy()	Objects	Groups iterable elements using string values returned from a function
groupCollapsed()	Console	Creates a new inline group in the console. However, the new group is created collapsed. The user will need to use the disclosure button to expand it
groupEnd()	Console	Exits the current inline group in the console
has()	Map	Returns true if a key exists in a map
has()	Proxy	Intercepts the in operator
has()	Reflect	Returns true if a property exists in an object
has()	Sets	Returns true if a value exists in a det
hasAttribute()	HTML Element	Returns true if an element has the specified attribute, otherwise false
hasAttributes()	HTML Element	Returns true if an element has any attributes, otherwise false
hasChildNodes()	HTML Element	Returns true if an element has any child nodes, otherwise false
hasFocus()	HTML Document	Returns a boolean value indicating whether the document has focus
hash	Window Object	Sets or returns the anchor part (#) of a URL
hasIndices	RegExp	Returns true if the "d" modifier is set in the expression
head	HTML Document	Returns the <head> element of the document
height	Screen	Returns the total height of the screen
history	Window Object	Returns the History object for the window
host	Window Object	Sets or returns the hostname and port number of a URL
hostname	Window Object	Sets or returns the hostname of a URL
href	Window Object	Sets or returns the entire URL
id	HTML Element	Sets or returns the value of the id attribute of an element
if ... else ... else if	Statements	Marks a block of statements to be executed depending on a condition
ignoreCase	RegExp	Checks whether the "i" modifier is set
images	HTML Document	Returns a collection of all <img> elements in the document
implementation	HTML Document	Returns the DOMImplementation object that handles this document
importNode()	HTML Document	Imports a node from another document
in	Operators	Returns true if a property is in a specified object
includes()	Array	Returns true if an array includes a specified value
includes()	Typed Array	Returns true if a typed array includes a specified value
includes()	Strings	Returns true if a string contains a specified value
indexOf()	Array	Returns the position of an element in an array
indexOf()	Strings	Returns the position of an element in a string
indexOf()	Typed Array	Returns the position of an element in a typed array
Infinity	Global	A numeric value that represents positive/negative infinity
info()	Console	Outputs an informational message to the console
innerHeight	Window Object	Returns the height of the window's content area (viewport) including scrollbars
innerHTML	HTML Element	Sets or returns the content of an element
innerText	HTML Element	Sets or returns the text content of a node and its descendants
innerHeight	Window Object	Returns the height of a window's content area (viewport)
innerWidth	Window Object	Returns the width of a window's content area (viewport)
inputEncoding	HTML Document	Returns the encoding, character set, used for the document
inputType	InputEvent	Returns the type of the change (i.e "inserting" or "deleting")
insertAdjacentElement()	HTML Element	Inserts a HTML element at the specified position relative to the current element
insertAdjacentHTML()	HTML Element	Inserts a HTML formatted text at the specified position relative to the current element
insertAdjacentText()	HTML Element	Inserts text into the specified position relative to the current element
insertBefore()	HTML Element	Inserts a new child node before a specified, existing, child node
instanceof	Operators	Returns true if an object is an instance of a specified object
instant()	Temporal.Now	Returns current time as a Temporal.Instant object
Int8Array	Typed Array	Typed array of 8-bit signed integers
Int16Array	Typed Array	Typed array of 16-bit signed integers
Int32Array	Typed Array	Typed array of 32-bit signed integers
intersection()	Set	Returns the intersection of two sets
isArray()	Array	Checks whether an object is an array
isDisjointFrom()	Set	Returns true if no Set elements are elements in the argument Set
isError()	Error	Returns true if a passed value is an Error
isExtensible()	Proxy	Returns true if an object is extensible
isExtensible()	Reflect	Returns true if an object is extensible
isFinite()	Number	Rturns true if a Number is a finite number
isNaN()	Number	Returns true if the value of a Number is NaN
isSubsetOf()	Set	Returns true if all Set elements are elements in the argument Set
isSupersetOf()	Set	Returns true if all elements in the argument Set are also in this Set
isWellFormed()	String	Returns true if a string is well formed
isComposing	InputEvent KeyboardEvent	Returns whether the state of the event is composing or not
isContentEditable	HTML Element	Returns true if the content of an element is editable, otherwise false
isDefaultNamespace()	HTML Element	Returns true if a specified namespaceURI is the default, otherwise false
isEqualNode()	HTML Element	Checks if two elements are equal
isExtensible()	Object	Returns true if an object is extensible
isFinite()	Global Number	Determines whether a value is a finite, legal number
isFrozen()	Object	Returns true if an object is frozen
isId	Attribute	Returns true if the attribute is of type Id, otherwise it returns false
isInteger()	Number	Checks whether a value is an integer
isNaN()	Global Number	Determines whether a value is an illegal number
isSafeInteger()	Number	Checks whether a value is a safe integer
isSameNode()	HTML Element	Checks if two elements are the same node
isSealed()	Object	Returns true if an object is sealed
isSupported()	HTML Element	Returns true if a specified feature is supported on the element
isTrusted	Event	Returns whether or not an event is trusted
item()	Attribute	Returns the attribute at a specified index
item()	HTML Collection	Returns the element at a specified index
item()	HTML NodeList	Returns the node at a specified index
item()	DOMTokenList	Returns the token at a specified index
javaEnabled()	Window Navigator	Returns true if the browser has Java enabled
join()	Array	Returns all elements of an array joined as a string
join()	Typed Array	Returns all elements of a typed array joined as a string
key	KeyboardEvent StorageEvent	Returns the key value of the key represented by the event
key()	Storage	Returns the name of the nth key in the storage
keyCode	KeyboardEvent	Returns the Unicode character code of the key that triggered the onkeypress event, or the Unicode key code of the key that triggered the onkeydown or onkeyup event
keys()	Array	Returns an Iterator with the keys of an array
keys()	Map	Returns an Iterator with the keys of a map
keys()	Object	Returns an Iterator with the keys of an object
keys()	Set	Returns an Iterator with the keys of a det
keys()	Typed Array	Returns an Iterator with the keys of an array
keys()	NodeList	Returns an Iterator with the keys of a NodeList
keys()	DOMTokenList	Returns an Iterator with the keys of a DOMTokenList
lang	HTML Element	Sets or returns the value of the lang attribute of an element
language	Navigator	Returns the language of the browser
lastChild	HTML Element	Returns the last child node of an element
lastElementChild	HTML Element	Returns the last child element of an element
lastIndex	RegExp	Specifies the index at which to start the next match
lastIndexOf()	Array	Returns the last index of an element in an array
lastIndexOf()	String	Returns the last index of an element in a string
lastIndexOf()	Typed Array	Returns the last position of an element in a typed array
lastModified	HTML Document	Returns the date and time the document was last modified
length	Array	Sets or returns the number of elements in an array
length	String	Returns the length of a string
length	Typed Array	Returns the length of a Typed Array
length	Window Object	Returns the number of (framed) windows in the Window
length	Window History	Returns the number of URLs in the Window history
length	HTML Attributes	Returns the number of nodes (attributes) in a NamedNodeMap.
length	HTML Collection	Returns the number of elements in an HTMLCollection
length	HTML NodeList	Returns the number of nodes in a NodeList
length	DOMTokenList	Returns the number of tokens in a DOMTokenList
length	API Storage	Returns the number of items stored in for this domain
length	Function	Returns the number of Function parameters
lengthComputable	ProgressEvent	Returns if the length of the progress can be computable
let	Statements	Declares a variable inside brackets {} scope
links	HTML Document	Returns a collection of all <a> and <area> elements in the document that have a href attribute
LN2	Math	Returns the natural logarithm of 2 (approx. 0.693)
LN10	Math	Returns the natural logarithm of 10 (approx. 2.302)
loaded	ProgressEvent	Returns how much work has been loaded
localeCompare()	String	Compares two strings in the current locale
localStorage	Window Object	Allows to save key/value pairs in a web browser. Stores the data with no expiration date
location	KeyboardEvent	Returns the location of a key on the keyboard or device
location	Window Object	Returns the Location object for a window
log()	Math Console	Returns the natural logarithm of a number
log()	Window Console	Writes (logs) a message to the console
log10()	Math	Returns the base-10 logarithm of a number
log1p()	Math	Returns the natural logarithm of 1 + a number
log2()	Math	Returns the base-2 logarithm of a number
LOG2E	Math	Returns the base-2 logarithm of E (approx. 1.442)
LOG10E	Math	Returns the base-10 logarithm of E (approx. 0.434)
map()	Array	Creates an array from calling a function for each array element
map()	Iterator	Creates an iterator from calling a function for each iterator element
map()	Typed Array	Returns a new typed array using a function on every array element
match()	String	Returns the matches in a string against a regular expression
matchAll()	Strings	Returns the matches in a string against a regular expression
matches()	HTML Element	Returns a boolean value indicating whether an element is matched by a specific CSS selector or not
matchMedia()	Window Object	Returns a MediaQueryList object representing the specified CSS media query string
max()	Math	Returns the number with the highest value
MAX_SAFE_INTEGER	Number	Returns the maximum safe integer in JavaScript
MIN_SAFE_INTEGER	Number	Returns the minimum safe integer in JavaScript
MAX_VALUE	Number	Returns the largest number possible in JavaScript
MIN_VALUE	Number	Returns the smallest number possible in JavaScript
message	Error	Sets or returns an error message (a string)
metaKey	MouseEvent KeyboardEvent TouchEvent	Returns whether the "META" key was pressed when an event was triggered
min()	Math	Returns the number with the lowest value
multiline	RegExp	Checks whether the "m" modifier is set
MIN_VALUE	Number	Returns the smallest number possible in JavaScript
moveBy()	Window Object	Moves a window relative to its current position
moveTo()	Window Object	Moves a window to the specified position
MovementX	MouseEvent	Returns the horizontal coordinate of the mouse pointer relative to the position of the last mousemove event
MovementY	MouseEvent	Returns the vertical coordinate of the mouse pointer relative to the position of the last mousemove event
name	Error	Sets or returns an Error name
name	Function	Returns the name of a function
name	Typed Array	Returns the name of the Typed Array
name	Window Object	Returns the name of the Window
name	HTML Attribute	Returns the name of the Attribute
namedItem()	HTMLCollection	Returns the element with the specified ID, or name, in an HTMLCollection
namespaceURI	HTML Element	Returns the namespace URI of an element
NaN	Global	A number that is not a legal number (Not-a-Number)
NaN	Number	A number that is not a legal number (Not-a-Number)
negated()	Duration	Returns a new duration with this duration negated
navigator	Window Object	Returns the Navigator object for a window
NEGATIVE_INFINITY	Number	Represents negative infinity (returned on overflow)
new (constructor)	Array	Creates a new Array object
new (constructor)	Boolean	Creates a new Boolean object
new (constructor)	Date	Creates a new Date object
new (constructor)	Duration	Creates a new Duration object
new (constructor)	Error	Creates a new Error object
new (constructor)	Instant	Creates a new Instant object
new (constructor)	Map	Creates a new Map object
new (constructor)	PlainDate	Creates a new PlainDate object
new (constructor)	PlainDateTime	Creates a new PlainDateTime object
new (constructor)	PlainMonthDay	Creates a new PlainMonthDay object
new (constructor)	PlainTime	Creates a new PlainTime object
new (constructor)	PlainYearMonth	Creates a new PlainYearMonth object
new (constructor)	Promise	Creates a new Promise object
new (constructor)	Set	Creates a new Set object
new (constructor)	ZonedDateTime	Creates a new ZonedDateTime object
newURL	HTML Event	Returns the URL after the document anchor has been changed
newValue	StorageEvent	Returns the new value of the changed storage item
nextSibling	HTML Element	Returns the next node at the same node tree level
nextElementSibling	HTML Element	Returns the next element at the same node tree level
nodeName	HTML Element	Returns the name of a node
nodeType	HTML Element	Returns the node type of a node
nodeValue	HTML Element	Sets or returns the value of a node
normalize()	HTML Document	Removes empty text nodes, and joins adjacent nodes
normalize()	HTML Element	Removes empty text nodes, and joins adjacent nodes
normalizeDocument()	HTML Document	Removes empty Text nodes, and joins adjacent nodes
now()	Date	Returns the number of milliseconds since midnight Jan 1, 1970
Number()	Global	Converts an object's value to a number
of()	Array	Creates an array from a number of arguments
of()	Typed Array	Creates a typed array from a number of arguments
offsetHeight	HTML Element	Returns the height of an element, including padding, border and scrollbar
offsetWidth	HTML Element	Returns the width of an element, including padding, border and scrollbar
offsetLeft	HTML Element	Returns the horizontal offset position of an element
offsetParent	HTML Element	Returns the offset container of an element
offsetTop	HTML Element	Returns the vertical offset position of an element
offsetX	MouseEvent	Returns the horizontal coordinate of the mouse pointer relative to the position of the edge of the target element
offsetY	MouseEvent	Returns the vertical coordinate of the mouse pointer relative to the position of the edge of the target element
oldURL	HTML Event	Returns the URL of the document, before the hash was changed
oldValue	StorageEvent	Returns the old value of the changed storage item
onabort	Event	Occurs when the loading of a media is aborted
onafterprint	Event	Occurs when a page has started printing, or if the print dialogue box has been closed
onanimationend	AnimationEvent	Occurs when a CSS animation has completed
onanimationiteration	AnimationEvent	Occurs when a CSS animation is repeated
onanimationstart	AnimationEvent	Occurs when a CSS animation has started
onbeforeprint	Event	Occurs when a page is about to be printed
onbeforeunload	Event	Occurs before the document is about to be unloaded
onblur	FocusEvent	Occurs when an element loses focus
oncanplay	Event	Occurs when the browser can start playing the media (when it has buffered enough to begin)
oncanplaythrough	Event	Occurs when the browser can play through the media without stopping for buffering
onchange	Event	Occurs when the content of a form element, the selection, or the checked state have changed (for <input>, <select>, and <textarea>)
onclick	MouseEvent	Occurs when the user clicks on an element
oncontextmenu	MouseEvent	Occurs when the user right-clicks on an element to open a context menu
oncopy	ClipboardEvent	Occurs when the user copies the content of an element
oncut	ClipboardEvent	Occurs when the user cuts the content of an element
ondblclick	MouseEvent	Occurs when the user double-clicks on an element
ondrag	DragEvent	Occurs when an element is being dragged
ondragend	DragEvent	Occurs when the user has finished dragging an element
ondragenter	DragEvent	Occurs when the dragged element enters the drop target
ondragleave	DragEvent	Occurs when the dragged element leaves the drop target
ondragover	DragEvent	Occurs when the dragged element is over the drop target
ondragstart	DragEvent	Occurs when the user starts to drag an element
ondrop	DragEvent	Occurs when the dragged element is dropped on the drop target
ondurationchange	Event	Occurs when the duration of the media is changed
onemptied		Occurs when something bad happens and the media file is suddenly unavailable (like unexpectedly disconnects)
onended	Event	Occurs when the media has reach the end (useful for messages like "thanks for listening")
onerror	ProgressEvent Event	Occurs when an error occurs while loading an external file
onfocus	FocusEvent	Occurs when an element gets focus
onfocusin	FocusEvent	Occurs when an element is about to get focus
onfocusout	FocusEvent	Occurs when an element is about to lose focus
onfullscreenchange	Event	Occurs when an element is displayed in fullscreen mode
onfullscreenerror	Event	Occurs when an element can not be displayed in fullscreen mode
onhashchange	HashChangeEvent	Occurs when there has been changes to the anchor part of a URL
oninput	InputEvent Event	Occurs when an element gets user input
oninvalid	Event	Occurs when an element is invalid
onkeydown	KeyboardEvent	Occurs when the user is pressing a key
onkeypress	KeyboardEvent	Occurs when the user presses a key
onkeyup	KeyboardEvent	Occurs when the user releases a key
onLine	Navigator	Determines whether the browser is online
onload	Event	Occurs when an object has loaded
onloadeddata	Event	Occurs when media data is loaded
onloadedmetadata	Event	Occurs when meta data (like dimensions and duration) are loaded
onloadstart	ProgressEvent	Occurs when the browser starts looking for the specified media
onmessage	Event	Occurs when a message is received through the event source
onmousedown	MouseEvent	Occurs when the user presses a mouse button over an element
onmouseenter	MouseEvent	Occurs when the pointer is moved onto an element
onmouseleave	MouseEvent	Occurs when the pointer is moved out of an element
onmousemove	MouseEvent	Occurs when the pointer is moving while it is over an element
onmouseover	MouseEvent	Occurs when the pointer is moved onto an element, or onto one of its children
onmouseout	MouseEvent	Occurs when a user moves the mouse pointer out of an element, or out of one of its children
onmouseup	MouseEvent	Occurs when a user releases a mouse button over an element
onmousewheel	WheelEvent	Deprecated. Use the wheel event instead
onoffline	Event	Occurs when the browser starts to work offline
ononline	Event	Occurs when the browser starts to work online
onopen	Event	Occurs when a connection with the event source is opened
onpagehide	PageTransition	Occurs when the user navigates away from a webpage
onpageshow	PageTransition	Occurs when the user navigates to a webpage
onpaste	ClipboardEvent	Occurs when the user pastes some content in an element
onpause	Event	Occurs when the media is paused either by the user or programmatically
onplay	Event	Occurs when the media has been started or is no longer paused
onplaying	Event	Occurs when the media is playing after having been paused or stopped for buffering
onpopstate	PopStateEvent	Occurs when the window's history changes
onprogress	Event	Occurs when the browser is in the process of getting the media data (downloading the media)
onratechange	Event	Occurs when the playing speed of the media is changed
onresize	Event	Occurs when the document view is resized
onreset	Event	Occurs when a form is reset
onscroll	Event	Occurs when an element's scrollbar is being scrolled
onsearch	Event	Occurs when the user writes something in a search field (for <input="search">)
onseeked	Event	Occurs when the user is finished moving/skipping to a new position in the media
onseeking	Event	Occurs when the user starts moving/skipping to a new position in the media
onselect	Event	Occurs after the user selects some text (for <input> and <textarea>)
onshow	Event	Occurs when a <menu> element is shown as a context menu
onstalled	Event	Occurs when the browser is trying to get media data, but data is not available
onstorage	StorageEvent	Occurs when a Web Storage area is updated
onsubmit	Event	Occurs when a form is submitted
onsuspend	Event	Occurs when the browser is intentionally not getting media data
ontimeupdate	Event	Occurs when the playing position has changed (like when the user fast forwards to a different point in the media)
ontoggle	Event	Occurs when the user opens or closes the <details> element
ontouchcancel	TouchEvent	Occurs when the touch is interrupted
ontouchend	TouchEvent	Occurs when a finger is removed from a touch screen
ontouchmove	TouchEvent	Occurs when a finger is dragged across the screen
ontouchstart	TouchEvent	Occurs when a finger is placed on a touch screen
ontransitionend	TransitionEvent	Occurs when a CSS transition has completed
onunload	Event	Occurs when a page has unloaded or window has been closed
onvolumechange	Event	Occurs when the volume of the media has changed or been muted
onwaiting	Event	Occurs when a media has paused but is expected to resume (buffering)
onwheel	WheelEvent	Occurs when the mouse wheel rolls up or down over an element
open()	HTML Document	Opens an HTML Document to collect output from document.write()
open()	Window Object	Opens a new browser window or a new tab
opener	Window Object	Returns a reference to the window that created the window
origin	Window Object	Returns the protocol, hostname and port number of a URL
outerHeight	Window Object	Returns the height of the browser window with toolbars/scrollbars
outerHTML	HTML Element	Sets or returns the outer content of an element
outerText	HTML Element	Sets or returns the text outer content of a node and its descendants
outerHeight	Window Object	Returns the height of the browser window with toolbars/scrollbars
outerWidth	Window Object	Returns the width of the browser window with toolbars/scrollbars
ownerDocument	HTML Element	Returns the root element (document object) for an element
ownKeys()	Proxy	Traps operations listing keys (properties)
ownKeys()	Reflect	Returns an array of an object's own property keys
padEnd()	String	Pads a string at the end
padStart()	String	Pads a string from the start
pageX	MouseEvent	Returns the horizontal coordinate of the mouse pointer
pageXOffset	Window Object	Returns the pixels a document has been scrolled
pageY	MouseEvent	Returns the vertical coordinate of the mouse pointer
pageYOffset	Window Object	Returns the pixels a document has been scrolled
pageYOffset	Window Object	Returns the pixels a document has been scrolled
parent	Window Object	Returns the parent window of the current window
parentNode	HTML Element	Returns the parent node of an element
parentElement	HTML Element	Returns the parent element node of an element
parse()	Date	Parses a string and returns milliseconds since epoch
parse()	JSON	Parses a string and returns a JavaScript object
parseFloat()	Global	Parses a string and returns the first number
parseFloat()	Number	Parses a string and returns the first number
parseInt()	Global	Parses a string and returns the first integer
parseInt()	Number	Parses a string and returns the first integer
pathname	Window Object	Sets or returns the path name of a URL
persisted	PageTransition	Returns whether the webpage was cached by the browser
PI	Math	Returns PI (approx. 3.14)
pixelDepth	Screen	Returns the color resolution (in bits per pixel) of the screen
plainDateISO()	Temporal.Now	Returns a PlainDate representing current date in ISO 8601
plainDateTimeISO()	Temporal.Now	Returns a PlainDateTime representing current date in ISO 8601
plainTimeISO()	Temporal.Now	Returns a PlainTime representing current time in ISO 8601
platform	Navigator	Returns for which platform the browser is compiled
preventExtentions()	Proxy	Makes an object non-extensive
preventExtentions()	Reflect	Prevent properties from being added to an object
pop()	Array	Removes the last element of an array, and returns that element
port	Window Object	Sets or returns the port number of a URL
position	Geolocation	Returns the position of the concerned device at a given time
positionError	Geolocation	Returns the reason of an error occurring when using the geolocating device
positionOptions	Geolocation	Describes an object containing option properties to pass as a parameter of Geolocation.getCurrentPosition() and Geolocation.watchPosition()
POSITIVE_INFINITY	Number	Represents infinity (returned on overflow)
pow()	Math	Returns the value of x to the power of y
preventDefault()	Event	Cancels the event if it is cancelable, meaning that the default action that belongs to the event will not occur
preventExtensions()	Object	Prevents adding new properties to an object
previousSibling	HTML Element	Returns the previous node at the same node tree level
previousElementSibling	HTML Element	Returns the previous element at the same node tree level
print()	Window Object	Prints the content of the current window
prompt()	Window Object	Displays a dialog box that prompts the visitor for input
prototype	Number Object String	Allows you to add properties and methods to an object
product	Navigator	Returns the engine name of the browser
propertyName	AnimationEvent TransitionEvent	Returns the name of the CSS property associated with the animation or transition
protocol	Window Object	Sets or returns the protocol of a URL
prototype	Array	Bult in template for Array properties and methods
prototype	Boolean	Bult in template for Boolean properties and methods
prototype	Date	Bult in template for Date properties and methods
prototype	Object	Bult in template for Object properties and methods
prototype	String	Bult in template for String properties and methods
pseudoElement	AnimationEvent TransitionEvent	Returns the name of the pseudo-element of the animation or transition
push()	Array	Adds new elements to the end of an array, and returns the new length
querySelector()	HTML Document	Returns the first element that matches a CSS selector
querySelector()	HTML Element	Return first child element that matches a CSS selector
querySelectorAll()	HTML Document	Returns all elements that matches a CSS selector
querySelectorAll()	HTML Element	Returns all child elements that matches a CSS selector
race()	Promise	Returns a Promise from a list of promises, when the faster promise settles
random()	Math	Returns a random number between 0 and 1
readyState	HTML Document	Returns the (loading) status of the document
reduce()	Array	Reduce the values of an array to a single value
reduce()	Iterator	Reduce the values of an Iterator to a single value
reduce()	Typed Array	Reduce the values of a Typed Array to a single value
reduceRight()	Array	Reduce the values of an array to a single value
reduceRight()	Typed Array	Reduce the values of a Typed Array to a single value
referrer	HTML Document	Returns the URL of the document that loaded the current document
reject()	Promise	Returns a Promise object rejected with a value
reload()	Window Object	Reloads the current document
remove()	HTML Element	Removes an element from the HTML DOM
remove()	DOMTokenList	Removes an element from a DOMTokenList
removeAttribute()	HTML Element	Removes an attribute from an element
removeAttributeNode()	HTML Element	Removes an attribute from an element
removeChild()	HTML Element	Removes a child node from an element
removeEventListener()	HTML Document	Removes an event handler from an HTML Document
removeEventListener()	HTML Element	Removes an event handler from an HTML Element
removeEventlistener()	Window Object	Removes an event handler from a Window Object
removeItem()	Storage	Removes that key from the storage
removeNamedItem()	Attribute	Removes a node (by name) in a NamedNodeMap
removeNamedItem()	Attribute	Removes a specified attribute node
renameNode()	HTML Document	Renames the specified node
repeat	KeyboardEvent	Returns whether a key is being hold down repeatedly, or not
repeat()	String	Returns a new string with a specified number of copies of an existing string
replace()	DOMTokenList	Replaces a token in a DOMTokenList.
replace()	String	Returns a string with a specified value is replaced
replace()	Window Location	Replaces the current document with a new one
replaceAll()	String	Returns a string with all matches of a specified value are replaced
replaceChild()	HTML Element	Replaces a child node in an element
requestAnimationFrame()	Window Object	Requests function to update an animation before the next repaint
requestFullscreen()	HTML Element	Shows an element in fullscreen mode
resizeBy()	Window Object	Resizes the window by the specified pixels
resizeTo()	Window Object	Resizes the window to the specified width and height
resolve()	Promise	Returns a Promise object resolved with a value
rest (...)	Arrays	Destructs an array and collects the leftovers.
return	Statements	Stops the execution of a function and returns a value from that function
reverse()	Array	Reverses the order of the elements in an array
reverse()	Typed Array	Reverses the order of the elements in a Typed Array
round()	Math	Rounds x to the nearest integer
round()	ZonedDate	Returns a ZonedDateTime with this ZonedDateTime rounded
relatedTarget	MouseEvent FocusEvent	Returns the element related to the element that triggered the mouse event
round()	Duration	Returns a new Duration with this Duration rounded
round()	Instant	Returns a new Instant with this Instant rounded
round()	PlainDateTime	Returns a new PlainDateTime with this PlainDateTime rounded
round()	PlainTime	Returns a new PlainTime with this PlainTime rounded
screen	Window Object	Returns the Screen object for the window
screenLeft	Window Object	Retrns the left position of a window
screenTop	Window Object	Retrns the top position of a window
screenX	Window Object	Returns the horizontal coordinate of the window/mouse pointer
screenX	Window Object	Returns the vertical coordinate of the mouse pointer
screenY	Window Object	Returns the vertical coordinate of the mouse pointer
scripts	HTML Document	Returns a collection of <script> elements in the document
scroll()	Window Object	Deprecated. Use scrollTo() instead.
scrollBy()	Window Object	Scrolls the document by the specified number of pixels
scrollHeight	HTML Element	Returns the entire height of an element, including padding
scrollIntoView()	HTML Element	Scrolls the specified element into the visible area of the browser window
scrollLeft	HTML Element	Sets or returns the number of pixels an element's content is scrolled horizontally
scrollTo()	Window Object	Scrolls the document to the specified coordinates
scrollTop	HTML Element	Sets or returns the number of pixels an element's content is scrolled vertically
scrollWidth	HTML Element	Returns the entire width of an element, including padding
scrollX	Window Object	An alias of pageXOffset
scrollY	Window Object	An alias of pageYOffset
seal()	Object	Prevents additions or deletions of new properties
search	Window Object	Sets or returns the querystring part of a URL
search()	String	Searches a string for a specified value, or regular expression, and returns the position of the match
self	Window Object	Returns the current window
sessionStorage	Window Object	Allows to save key/value pairs in a web browser. Stores the data for one session
set()	Map	Sets the value for a key in a map
set()	Proxy	Traps the internal [[Set]] method
set()	Reflect	Sets the value of a property
set()	Typed Array	Stores values in a typed array from another array
setAttribute()	HTML Element	Sets or changes the specified attribute, to the specified value
setAttributeNode()	HTML Element	Sets or changes the specified attribute node
setDate()	Date	Sets the day of the month of a date object
setFullYear()	Date	Sets the year of a date object
setHours()	Date	Sets the hour of a date object
setInterval()	Window Object	Calls a function / evaluates an expression at specified intervals
setItem()	Storage	Adds or updates the value of the a storage object item
setMilliseconds()	Date	Sets the milliseconds of a date object
setMinutes()	Date	Set the minutes of a date object
setMonth()	Date	Sets the month of a date object
setNamedItem()	Attribute	Sets the specified attribute node (by name)
setPrototypeOf()	Proxy	Traps setPrototypeOf()
setPrototypeOf()	Reflect	Sets the prototype of an object
setSeconds()	Date	Sets the seconds of a date object
setTime()	Date	Sets a date to a specified number of milliseconds after epoch
setTimeout()	Window Object	Calls a function or evaluates an expression after a number of milliseconds
setUTCDate()	Date	Sets the day of the month of a date object, according to universal time
setUTCFullYear()	Date	Sets the year of a date object, according to universal time
setUTCHours()	Date	Sets the hour of a date object, according to universal time
setUTCMilliseconds()	Date	Sets the milliseconds of a date object, according to universal time
setUTCMinutes()	Date	Set the minutes of a date object, according to universal time
setUTCMonth()	Date	Sets the month of a date object, according to universal time
setUTCSeconds()	Date	Set the seconds of a date object, according to universal time
setYear()	Date	Deprecated. Use setFullYear() instead
shift()	Array	Removes the first element of an array, and returns that element
shiftKey	MouseEvent KeyboardEvent TouchEvent	Returns whether the "SHIFT" key was pressed when an event was triggered
sign(x)	Math	Returns the sign of a number (checks whether it is positive, negative or zero)
sin()	Math	Returns the sine of x (x is in radians)
sinh()	Math	Returns the hyperbolic sine of x
since()	Instant	Returns the Duration from another Instant
since()	PlainDate	Returns the Duration from another PlainDate
since()	PlainDateTime	Returns the Duration from another PlainDateTime
since()	PlainTime	Returns the Duration from another PlainTime
since()	PlainYearMonth	Returns the Duration from another PlainYearMonth
since()	ZonedDateTime	Returns the Duration from another ZonedDateTime
size	Map	Returns the number of map elements
size	Set	Returns the number of set elements
slice()	Array	Returns an array with selected elements from an array
slice()	Strings	Returns a string with selected characters from a string
slice()	Typed Array	Returns a typed array with selected elements from another array
some()	Array	Returns true if some elements in an array pass a test
some()	Iterators	Returns true if some elements in an interator pass a test
some()	Typed Array	Returns true if a function returns true for any array element
sort()	Array	Sorts the elements of an array
sort()	Typed Array	Returns a sorted typed array.
source	RegExp	Returns the text of the RegExp pattern
specified	Attribute	Returns true if the attribute has been specified, otherwise it returns false
splice()	Array	Adds/Removes elements from an array
split()	String	Splits a string into an array of substrings
spread (...)	Array	Splits an array into individual elements.
sqrt()	Math	Returns the square root of x
SQRT1_2	Math	Returns the square root of 1/2 (approx. 0.707)
SQRT2	Math	Returns the square root of 2 (approx. 1.414)
static	Classes	Defines a static method for a class
startsWith()	String	Checks whether a string begins with specified characters
state	PopStateEvent	Returns an object containing a copy of the history entries
status	Window Object	Sets or returns the text in the statusbar of a window
sticky	RegExp	Returns true if the /y modifier is set in an expression
stop()	Window Object	Stops the window from loading
stopImmediate Propagation()	Event	Prevents other listeners of the same event from being called
stopPropagation()	Event	Prevents further propagation of an event during event flow
storageArea	StorageEvent	Returns an object representing the affected storage object
String()	Global	Converts a value to a string
stringify()	JSON	Convert a JavaScript object to a JSON string
strictErrorChecking	HTML Document	Deprecated. Sets or returns whether error-checking is enforced or not
style	HTML Element	Sets or returns the value of the style attribute of an element
subarray()	Typed Array	Creates a new typed array in the same memory space
substr()	String	Deprecated. Use substring() or slice() instead
substring()	String	Extracts characters (between two indices) from a string
subtract()	Duration	Returns a Duration with a Duration subtracted
subtract()	Instant	Returns an Instant with a Duration subtracted
subtract()	PlainDate	Returns a PlainDate with a Duration subtracted
subtract()	PlainDateTime	Returns a PlainDateTime with a Duration subtracted
subtract()	PlainTime	Returns a PlainTime with a Duration subtracted
subtract()	PlainYearMonth	Returns a PlainYearMonth with a Duration subtracted
subtract()	ZonedDateTime	Returns a ZonedDatetime with a Duration subtracted
super	Classes	Refers to the parent class
supports()	DOMTokenList	Returns true if a token is one of an attribute's supported tokens
switch	Statements	Marks a block of statements to be executed depending on different cases
symmetricDifference()	Set	Returns the symmetric difference between two sets
table()	Console	Displays tabular data as a table
tabIndex	HTML Element	Sets or returns the value of the tabindex attribute of an element
tagName	HTML Element	Returns the tag name of an element
taintEnabled()	Window Navigator	Deprecated.
take()	Iterators	Returns an iterator with specific elements from an iterator.
tan()	Math	Returns the tangent of an angle
tanh()	Math	Returns the hyperbolic tangent of a number
target	Event	Returns the element that triggered the event
targetTouches	TouchEvent	Returns a list of all the touch objects that are in contact with the surface and where the touchstart event occured on the same target element as the current target element
test()	RegExp	Tests for a match in a string. Returns true or false
textContent	HTML Element	Sets or returns the textual content of a node and its descendants
then()	Promise	Provides two callbacks: One funtion to run when a promise is fulfilled and one funtion to run when a promise is rejected
this		Refers to the object it belongs to
throw	Statements	Throws (generates) an error
time()	Console	Starts a timer (can track how long an operation takes)
timeEnd()	Console	Stops a timer that was previously started by console.time()
timeStamp	Event	Returns the time (in milliseconds) when the event was created
timeZoneId()	Temporal.Now	Returns a time zoneId representing the system's current time zone
title	HTML Document	Sets or returns the title of the document
title	HTML Elements	Sets or returns the value of an element's title attribute
toDateString()	Date	Converts the date portion of a Date object into a readable string
toExponential()	Number	Converts a number into an exponential notation
toFixed(x)	Number	Formats a number with x numbers of digits after the decimal point
toggle()	DOMTokenList	Adds one (or more) tokens to a DOMTokenList
toGMTString()	Date	Deprecated. Use toUTCString() instead
toInstant()	ZonedDateTime	Returns an Instant representing the ZonedDateTime
toISOString()	Date	Returns a Date as a string, using the ISO standard
toJSON()	Date	Returns a Date as an ISO/RFC 9557 String
toJSON()	Duration	Returns a Duration as an ISO/RFC 9557 String
toJSON()	Instant	Returns a Instant as an ISO/RFC 9557 String
toJSON()	PlainDate	Returns a PlainDate as an ISO/RFC 9557 String
toJSON()	PlainDateTime	Returns a PlainDateTime as an ISO/RFC 9557 String
toJSON()	PlainMonthDay	Returns a PlainMonthDay as an ISO/RFC 9557 String
toJSON()	PlainTime	Returns a PlainTime as an ISO/RFC 9557 String
toJSON()	PlainYearMonth	Returns a PlainYearMonth as an ISO/RFC 9557 String
toJSON()	ZonedDateTime	Returns a ZonedDateTime as an ISO/RFC 9557 String
toLocaleDateString()	Date	Returns the date portion of a Date object as a string, using locale conventions
toLocaleLowerCase()	String	Converts a string to lowercase letters, according to the host's locale
toLocaleString()	Date	Returns the Date as a string using locale settings
toLocaleString()	Duration	Returns a Duration as a string using locale settings
toLocaleString()	Instant	Returns an Intant as a string using locale settings
toLocaleString()	Number	Returns a Date as a string using locale settings
toLocaleString()	PlainDate	Returns a PlainDate as a string using locale settings
toLocaleString()	PlainDateTime	Returns a PlainDateTime as a string using locale settings
toLocaleString()	PlainMonthDay	Returns a PlainMontDay as a string using locale settings
toLocaleString()	PlainTime	Returns a PlainTime as a string using locale settings
toLocaleString()	PlainYearMonth	Returns a PlainYearMonth a string using locale settings
toLocaleString()	Typed Array	Returns an array as strings using locale settings
toLocaleString()	ZonedDateTime	Returns a ZonedDateTime as a string using locale settings
toLocaleTimeString()	Date	Returns the time of a Date as a string using locale settings
toLocaleUpperCase()	String	Converts a string to uppercase letters, according to the host's locale
toLowerCase()	String	Converts a string to lowercase letters
top	Window Object	Returns the topmost browser window
toPlainDate()	PlainDateTime	Returns a PlainDate representing this PlainDateTime
toPlainDate()	PlainMonthDay	Returns a PlainDate representing this PlainMonthDay and a year
toPlaindate()	PlainYearMonth	Returns a PlainDate representing this PlainYearMonth and a day
toPlainDate()	ZonedDateTime	Returns a PlainDate representing the ZonedDateTime
toPlainDateTime()	PlainDate	Returns a PlainDateTime representing this PlainDate
toPlainDateTime()	ZonedDateTime	Returns a PlainDateTime representing the ZonedDateTime
toPlainMonthDay()	PlainDate	Returns a PlainMonthDay representing this PlainDate
toPlainTime()	PlainDateTime	Returns a PlainTime representing this PlainDateTime
toPlainTime()	ZonedDateTime	Returns a PlainTime representing the ZonedDateTime
toPlainYearMonth()	PlainDate	Returns a PlainYearMonth representing this PlainDate
toPrecision(x)	Number	Formats a number to x length
toReversed()	Array	Returns a new reversed Array
toReversed()	Typed Array	Returns a new reversed Typed Array
toSorted()	Array	Returns a new sorted Array
toSorted()	Typed Array	Returns a new sorted Typed Array
toSpliced()	Array	Adds or removes array elements (to a new array)
startofday()	ZonedDateTime	Returns the first ZonedDateTime instant of this date
toString()	Array	Returns the string values of aa Array
toString()	Boolean	Returns the string value of a boolean
toString()	Date	Returns the string value of a Date
toString()	Function	Returns the string value of a function
toString()	Numbers	Returns the string value of a Number
toString()	Objects	Returns [object Object]
toString()	RegExp	Returns the string value of a regular expression
toString()	Strings	Returns the string value of a string
toString()	Typed Array	Returns the string values of a Typed Array
toString()	Duration	Returns the string value of a Duration
toString()	Instant	Returns the string value of an Instant
toString()	PlainDate	Returns the string value of a PlainDate
toString()	PlainDateTime	Returns the string value of a PlainDateTime
toString()	PlainMonthDay	Returns the string value of a PlainMonthDay
toString()	PlainTime	Returns the string value of a PlainTime
toString()	PlainYearMonth	Returns the string value of a PlainYearMonth
toString()	ZonedDateTime	Returns the string value of a ZonedDateTime
total()	Duration	Returns a number representing a total duration
total	ProgressEvent	Returns the total amount of work that will be loaded
toTimeString()	Date	Converts the time portion of a Date object to a string
touches	TouchEvent	Returns a list of all touch objects currently in contact with the surface
toUpperCase()	String	Converts a string to uppercase letters
toUTCString()	Date	Converts a Date object to a string, according to universal time
toWellFormed()	Strings	Returns a string with "lone surrogates" replaced as Unicode
toZonedDateTime()	PlainDate	Returns a ZonedDateTime representing this PlainDate
toZonedDateTime()	PlainDateTime	Returns a ZonedDateTime representing this PlainDateTime
toZonedDateTimeISO()	Instant	Returns a ZonedDateTime representing this Instant
trace()	Console	Outputs a stack trace to the console
transitionend	TransitionEvent	Occurs when a CSS transition has completed
trim()	String	Removes whitespace from both ends of a string
trimEnd()	String	Returns a string with removed whitespaces from the end
trimStart()	String	Returns a string with removed whitespaces from the start
trunc()	Math	Returns the integer part of a number (x)
try()	Promises	Executes a function and wraps the result in a promise
try ... catch ... finally	Statements	Marks the block of statements to be executed when an error occurs in a try block, and implements error handling
type	Event	Returns the name of the event
typeof	Operators	Returns the type of a variable
Uint8Array	Typed Arrays	Typed array of 8-bit unsigned integers
Uint8ClampedArray	Typed Arrays	Typed array of 8-bit clamped integers
Uint16Array	Typed Arrays	Typed array of 16-bit unsigned integers
Uint32Array	Typed Arrays	Typed array of 32-bit unsigned integers
undefined	Global	Indicates that a variable has not been assigned a value
unescape()	Global	Deprecated. Use decodeURI() instead
unicode	RegExp	Returns true if the u flag is set in an expression
unicodeSets	RegExp	Returns true if the v flag is set in an expression
union()	Set	Returns the union of two sets
unshift()	Array	Adds new elements to the beginning of an array, and returns the new length
until()	Instant	Returns the Duration from this Instant until another
until()	PlainDate	Returns the Duration from this PlainDate until another
until()	PlainDateTime	Returns the Duration from this PlainDateTime until another
until()	PlainTime	Returns the Duration from this PlainTime until another
until()	PlainYearMonth	Returns the Duration from this PlainYearMonth until another
until()	ZonedDateTime	Returns the Duration from this ZonedDateTime until another
url	StorageEvent	Returns the URL of the changed item's document
URL	HTML Document	Returns the full URL of the HTML document
userAgent	Navigator	Returns the user-agent header sent by the browser to the server
UTC()	Date	Returns the number of milliseconds in a date since midnight of January 1, 1970, according to UTC time
value	Attribute	Sets or returns the value of the attribute
value	DOMTokenList	Returns a DOMTokenList as a string
valueOf()	Array	Returns the primitive values of an array
valueOf()	Boolean	Returns the primitive value of a boolean
valueOf()	Date	Returns the primitive value of a Date
valueOf()	Function	Returns the primitive value of a function
valueOf()	Number	Returns the primitive value of a Number
valueOf()	Object	Returns [object Object]
valueOf()	Strings	Returns the primitive value of a string
valueOf()	Duration	Throws a TypeError
valueOf()	Instant	Throws a TypeError
valueOf()	PlainDate	Throws a TypeError
valueOf()	PlainDateTime	Throws a TypeError
valueOf()	PlainMonthDay	Throws a TypeError
valueOf()	PlainTime	Throws a TypeError
valueOf()	PlainYearMonth	Throws a TypeError
valueOf()	ZonedDateTime	Throws a TypeError
values()	Array	Returns an iterator object of the values in an array
values()	DOMTokenList	Returns an iterator object of the values in a DOMTokenList
values()	HTML NodeList	Returns an iterator object of the values in a NodeList
values()	Map	Returns an iterator object of the values in a map
values()	Objects	Returns an iterator object of the values in an object
values()	Sets	Returns an iterator object of the values in a det
values()	Typed Array	Returns an iterator object of the values in a Typed Array
var	Statements	Declares a variable
warn()	Console	Outputs a warning message to the console
watchPosition()	Geolocation	Returns a watch ID
which	MouseEvent KeyboardEvent	Returns which mouse button was pressed when the mouse event was triggered
width	Screen	Returns the total width of the screen
with()	Array	Returns an array with an updated element
with()	Typed Array	Returns a typed array with an updated element
withResolvers()	Promise	Returns an object containing 3 properties: 1. A Promise Object 2. A function that resolves the promise 3. A function that rejects the promise
with()	Duration	Returns a Duration with properties modified
with()	PlainDate	Returns a PlainDate with properties modified
with()	PlainDateTime	Returns a PlainDateTime with properties modified
with()	PlainMonthDay	Returns a PlainMonthDay with properties modified
with()	PlainTime	Returns a PlainTime with properties modified
with()	PlainYearMonth	Returns a PlainYearMonth with properties modified
with()	ZonedDateTime	Returns a ZonedDateTime with properties modified
withCalendar()	PlainDate	Returns a PlainDate in a new calendar system
withCalendar()	PlainDateTime	Returns a PlainDateTime in a new calendar system
withCalendar()	ZonedDateTime	Returns a ZonedDateTime in a new calendar system
withPlainTime()	PlainDateTime	Returns a PlainDateTime with the time part replaced
withPlainTime()	ZonedDateTime	Returns a ZonedDateTime with the time part replaced
withTimeZone()	ZonedDateTime	Returns a ZonedDateTime with in another time zone.
view	Event	Returns a reference to the Window object where the event occurred
void	Operators	Evaluates an expression and returns undefined
while	Statements	Marks a block of statements to be executed while a condition is true
write()	HTML Document	Writes HTML expressions or JavaScript code to a document
writeln()	HTML Document	Same as write(), but adds a newline character after each statement
yield	Operators	Pauses and resumes a generator function
zonedDateTimeISO()	Temporal.Now	Returns a ZonedDateTime representing the current date and time in the specified time zone