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Russell edited this page Dec 15, 2020 · 2 revisions

Value properties

These global properties return a simple value. They have no properties or methods.

Function properties

These global functions—functions which are called globally, rather than on an object—directly return their results to the caller.

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

Fundamental objects

These are the fundamental, basic objects upon which all other objects are based. This includes general objects, booleans, functions, and symbols.

  • Object
  • Function
  • Boolean
  • Symbol

Error objects

Error objects are a special type of fundamental object. They include the basic Error type, as well as several specialized error types.

  • Error
  • AggregateError
  • EvalError
  • InternalError
  • RangeError
  • ReferenceError
  • SyntaxError
  • TypeError
  • URIError

Numbers and dates

These are the base objects representing numbers, dates, and mathematical calculations.

  • Number
  • BigInt
  • Math
  • Date

Text processing

These objects represent strings and support manipulating them.

  • String
  • RegExp

Indexed collections

These objects represent collections of data which are ordered by an index value. This includes (typed) arrays and array-like constructs.

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

Keyed collections

These objects represent collections which use keys. The iterable collections (Map and Set) contain elements which are easily iterated in the order of insertion.

  • Map
  • Set
  • WeakMap
  • WeakSet

Structured data

These objects represent and interact with structured data buffers and data coded using JavaScript Object Notation (JSON).

  • ArrayBuffer
  • SharedArrayBuffer
  • Atomics
  • DataView
  • JSON

Control abstraction objects

Control abstractions can help to structure code, especially async code (without using deeply nested callbacks, for example).

  • Promise
  • Generator
  • GeneratorFunction
  • AsyncFunction
  • AsyncGenerator
  • AsyncGeneratorFunction
  • Reflection
  • Reflect
  • Proxy

Internationalization

Additions to the ECMAScript core for language-sensitive functionalities.

  • Intl
  • Intl.Collator
  • Intl.DateTimeFormat
  • Intl.ListFormat
  • Intl.NumberFormat
  • Intl.PluralRules
  • Intl.RelativeTimeFormat
  • Intl.Locale

Web Assembly

  • WebAssembly
  • WebAssembly
  • WebAssembly.Module
  • WebAssembly.Instance
  • WebAssembly.Memory
  • WebAssembly.Table
  • WebAssembly.CompileError
  • WebAssembly.LinkError
  • WebAssembly.RuntimeError

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