![]() ![]() ![]() Using percent-encoding, reserved characters are represented using special character sequences. Unreserved characters have no such meanings. For example, forward slash characters are used to separate different parts of a URL (or more generally, a URI). Reserved characters are those characters that sometimes have special meaning. The characters allowed in a URI are either reserved or unreserved (or a percent character as part of a percent-encoding). Percent-encoding in a URI Types of URI characters As such, it is also used in the preparation of data of the application/x-www-form-urlencoded media type, as is often used in the submission of HTML form data in HTTP requests. Although it is known as URL encoding, it is also used more generally within the main Uniform Resource Identifier (URI) set, which includes both Uniform Resource Locator (URL) and Uniform Resource Name (URN). URL encoding, officially known as percent-encoding, is a method to encode arbitrary data in a Uniform Resource Identifier (URI) using only the US-ASCII characters legal within a URI. Warning: String.x is deprecated use links within Wikipedia needing percent-encoding, see Help:URL § Fixing links with unsupported characters.Warning: JavaScript 1.6's for-each-in loops are deprecated.Warning: 08/09 is not a legal ECMA-262 octal constant.Warning: -file- is being assigned a //# sourceMappingURL, but already has one.TypeError: variable "x" redeclares argument.TypeError: setting a property that has only a getter.TypeError: property "x" is non-configurable and can't be deleted.TypeError: invalid assignment to const "x".TypeError: can't redefine non-configurable property "x".TypeError: can't define property "x": "obj" is not extensible.TypeError: "x" is not a non-null object.Synta圎rror: unterminated string literal.Synta圎rror: test for equality (=) mistyped as assignment (=)?.Synta圎rror: redeclaration of formal parameter "x".Synta圎rror: missing } after property list.Synta圎rror: missing } after function body. ![]() Synta圎rror: missing ] after element list.Synta圎rror: missing = in const declaration.Synta圎rror: missing : after property id.Synta圎rror: missing ) after argument list.Synta圎rror: invalid regular expression flag "x".Synta圎rror: identifier starts immediately after numeric literal.Synta圎rror: function statement requires a name.Synta圎rror: for-in loop head declarations may not have initializers.Synta圎rror: applying the 'delete' operator to an unqualified name is deprecated.Synta圎rror: a declaration in the head of a for-of loop can't have an initializer.Synta圎rror: Using to indicate sourceURL pragmas is deprecated.Synta圎rror: Malformed formal parameter.Synta圎rror: "x" is a reserved identifier.Synta圎rror: "use strict" not allowed in function with non-simple parameters.Synta圎rror: "0"-prefixed octal literals and octal escape seq.ReferenceError: reference to undefined property "x".ReferenceError: invalid assignment left-hand side.ReferenceError: deprecated caller or arguments usage.ReferenceError: assignment to undeclared variable "x".RangeError: repeat count must be non-negative.RangeError: repeat count must be less than infinity.RangeError: argument is not a valid code point.Error: Permission denied to access property "x".The definition of 'decodeURIComponent' in that specification. URIError: malformed URI sequence Specifications Specification Examples Decoding a Cyrillic URL component decodeURIComponent('JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B') Replaces each escape sequence in the encoded URI component with the character that it represents. Throws an URIError ("malformed URI sequence") exception when used wrongly. Return valueĪ new string representing the decoded version of the given encoded Uniform Resource Identifier (URI) component. Syntax decodeURIComponent( encodedURI) Parameters encodedURI An encoded component of a Uniform Resource Identifier. The decodeURIComponent() function decodes a Uniform Resource Identifier (URI) component previously created by encodeURIComponent or by a similar routine.
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