

As soon as one browser implements a feature, we try to document it. The standards for JavaScript are the ECMAScript Language Specification (ECMA-262) and the ECMAScript Internationalization API specification (ECMA-402).

For information about APIs that are specific to Web pages, please see Web APIs and DOM. This section is dedicated to the JavaScript language itself, and not the parts that are specific to Web pages or other host environments. JavaScript is a prototype-based, multi-paradigm, single-threaded, dynamic language, supporting object-oriented, imperative, and declarative (e.g. While it is most well-known as the scripting language for Web pages, many non-browser environments also use it, such as Node.js, Apache CouchDB and Adobe Acrobat. JavaScript ( JS) is a lightweight, interpreted, or just-in-time compiled programming language with first-class functions. Enumerability and ownership of properties.Synta圎rror: unterminated string literal.Synta圎rror: function statement requires a name.ReferenceError: reference to undefined property "x".ReferenceError: assignment to undeclared variable "x".Synta圎rror: "use strict" not allowed in function with non-simple parameters.
#PURE DEFINITION CODE#
Warning: unreachable code after return statement.RangeError: repeat count must be less than infinity.Synta圎rror: "x" is a reserved identifier.TypeError: Reduce of empty array with no initial value.Synta圎rror: redeclaration of formal parameter "x".Error: Permission denied to access property "x".RangeError: argument is not a valid code point.TypeError: can't delete non-configurable array element.TypeError: "x" is not a non-null object.RangeError: repeat count must be non-negative.Synta圎rror: missing ) after argument list.Synta圎rror: missing = in const declaration.Synta圎rror: missing } after property list.Synta圎rror: missing } after function body.Synta圎rror: missing : after property id.Synta圎rror: missing ] after element list.Synta圎rror: Malformed formal parameter.TypeError: invalid 'instanceof' operand 'x'.


