Expand description
Bindings to JavaScript’s standard, built-in objects, including their methods and properties.
This does not include any Web, Node, or any other JS environment APIs. Only the things that are guaranteed to exist in the global scope by the ECMAScript standard.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
A Note About camelCase
, snake_case
, and Naming Conventions
JavaScript’s global objects use camelCase
naming conventions for functions
and methods, but Rust style is to use snake_case
. These bindings expose
the Rust style snake_case
name. Additionally, acronyms within a method
name are all lower case, where as in JavaScript they are all upper case. For
example, decodeURI
in JavaScript is exposed as decode_uri
in these
bindings.
Modules
- The
Atomics
object provides atomic operations as static methods. They are used withSharedArrayBuffer
objects. - The
JSON
object contains methods for parsing JavaScript Object Notation (JSON) and converting values to JSON. It can’t be called or constructed, and aside from its two method properties, it has no interesting functionality of its own.
Structs
- Iterator returned by
Array::into_iter
- Iterator returned by
Array::iter
- Any object that conforms to the JS async iterator protocol. For example, something returned by
myObject[Symbol.asyncIterator]()
. - An iterator over the JS
Symbol.iterator
iteration protocol. - An iterator over the JS
Symbol.iterator
iteration protocol. - Any object that conforms to the JS iterator protocol. For example, something returned by
myArray[Symbol.iterator]()
. - The result of calling
next()
on a JS iterator. - The
Promise
object represents the eventual completion (or failure) of an asynchronous operation, and its resulting value. - The
RangeError
object indicates an error when a value is not in the set or range of allowed values. - The
ReferenceError
object represents an error when a non-existent variable is referenced. - A
SyntaxError
is thrown when the JavaScript engine encounters tokens or token order that does not conform to the syntax of the language when parsing code. - The
TypeError
object represents an error when a value is not of the expected type. - The
URIError
object represents an error when a global URI handling function was used in a wrong way.
Functions
- The
decodeURI()
function decodes a Uniform Resource Identifier (URI) previously created byencodeURI
or by a similar routine. - The
decodeURIComponent()
function decodes a Uniform Resource Identifier (URI) component previously created byencodeURIComponent
or by a similar routine. - The
encodeURI()
function encodes a Uniform Resource Identifier (URI) by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for characters composed of two “surrogate” characters). - The
encodeURIComponent()
function encodes a Uniform Resource Identifier (URI) component by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for characters composed of two “surrogate” characters). - The
escape()
function computes a new string in which certain characters have been replaced by a hexadecimal escape sequence. - The
eval()
function evaluates JavaScript code represented as a string. - Returns a handle to the global scope object.
- The global
isFinite()
function determines whether the passed value is a finite number. If needed, the parameter is first converted to a number. - The
parseFloat()
function parses an argument and returns a floating point number, or NaN on error. - The
parseInt()
function parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems), or NaN on error. - Create an iterator over
val
using the JS iteration protocol andSymbol.iterator
. - The
unescape()
function computes a new string in which hexadecimal escape sequences are replaced with the character that it represents. The escape sequences might be introduced by a function likeescape
. Usually,decodeURI
ordecodeURIComponent
are preferred overunescape
.