JavaScript reference

JavaScript standard built-in objects, along with their methods and properties.

• globalThis
• Infinity
• NaN
• undefined

• eval()
• isFinite()
• isNaN()
• parseFloat()
• parseInt()
• decodeURI()
• decodeURIComponent()
• encodeURI()
• encodeURIComponent()
• escape() Deprecated
• unescape() Deprecated

• Object
• Function
• Boolean
• Symbol

• Error
• AggregateError
• EvalError
• RangeError
• ReferenceError
• SyntaxError
• TypeError
• URIError
• InternalError Non-standard

• Number
• BigInt
• Math
• Date

• String
• RegExp

• Array
• Int8Array
• Uint8Array
• Uint8ClampedArray
• Int16Array
• Uint16Array
• Int32Array
• Uint32Array
• BigInt64Array
• BigUint64Array
• Float32Array
• Float64Array

• Map
• Set
• WeakMap
• WeakSet

• ArrayBuffer
• SharedArrayBuffer
• DataView
• Atomics
• JSON

• WeakRef
• FinalizationRegistry

• Iterator
• AsyncIterator
• Promise
• GeneratorFunction
• AsyncGeneratorFunction
• Generator
• AsyncGenerator
• AsyncFunction

• Reflect
• Proxy

• Intl
• Intl.Collator
• Intl.DateTimeFormat
• Intl.DisplayNames
• Intl.DurationFormat
• Intl.ListFormat
• Intl.Locale
• Intl.NumberFormat
• Intl.PluralRules
• Intl.RelativeTimeFormat
• Intl.Segmenter

JavaScript statements and declarations

• return
• break
• continue
• throw
• if...else
• switch
• try...catch

• var
• let
• const

• function
• function*
• async function
• async function*
• class

• do...while
• for
• for...in
• for...of
• for await...of
• while

• Empty
• Block
• Expression statement
• debugger
• export
• import
• label
• with Deprecated

JavaScript expressions and operators.

• this
• Literals
• []
• {}
• function
• class
• function*
• async function
• async function*
• /ab+c/i
• `string`
• ( )

• Property accessors
• ?.
• new
• new.target
• import.meta
• super
• import()

• A++
• A--
• ++A
• --A

• delete
• void
• typeof
• +
• -
• ~
• !
• await

• **
• *
• /
• %
• + (Plus)
• -

• < (Less than)
• > (Greater than)
• <=
• >=
• instanceof
• in

• ==
• !=
• ===
• !==

• <<
• >>
• >>>

• &
• |
• ^

• &&
• ||
• ??

• (condition ? ifTrue : ifFalse)

• =
• *=
• /=
• %=
• +=
• -=
• <<=
• >>=
• >>>=
• &=
• ^=
• |=
• **=
• &&=
• ||=
• ??=
• [a, b] = arr, { a, b } = obj

• yield
• yield*

• ...obj

• ,

JavaScript functions.

• Arrow Functions
• Default parameters
• Rest parameters
• arguments
• Method definitions
• getter
• setter

JavaScript classes.

• constructor
• extends
• Private class features
• Public class fields
• static
• Static initialization blocks

• Lexical grammar
• Data types and data structures
• Iteration protocols
• Trailing commas
• Errors
• Strict mode
• Deprecated features