Standard objects by category
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.
escape()Deprecated
unescape()
Fundamental objects
These objects represent fundamental language constructs.
Error objects
Error objects are a special type of fundamental object. They include the basicÂ
Error type, as well as several specialized error types.InternalError
Numbers and dates
These are the base objects representing numbers, dates, and mathematical calculations.
Text processing
These objects represent strings and support manipulating them.
Indexed collections
These objects represent collections of data which are ordered by an index value. This includes (typed) arrays and array-like constructs.
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.Structured data
These objects represent and interact with structured data buffers and data coded using JavaScript Object Notation (JSON).
Managing memory
These objects interact with the garbage collection mechanism.
FinalizationRegistryA callback is invoked when an object is garbage-collected
Control abstraction objects
Control abstractions can help to structure code, especially async code (without using deeply nested callbacks, for example).
Reflection
Internationalization
Additions to the ECMAScript core for language-sensitive functionalities.
Other
- Video
- A example
- method and attribute list
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