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The decodeURI() function decodes a Uniform Resource Identifier (URI) previously created by encodeURI() or by a similar routine.

Syntax

decodeURI(encodedURI)

Parameters

encodedURI
A complete, encoded Uniform Resource Identifier.

Return value

A new string representing the unencoded version of the given encoded Uniform Resource Identifier (URI).

Exceptions

Throws an URIError ("malformed URI sequence") exception when encodedURI contains invalid character sequences.

Description

Replaces each escape sequence in the encoded URI with the character that it represents, but does not decode escape sequences that could not have been introduced by encodeURI. The character “#” is not decoded from escape sequences.

Examples

Decoding a Cyrillic URL

decodeURI('https://developer.mozilla.org/ru/docs/JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B');
// "https://developer.mozilla.org/ru/docs/JavaScript_шеллы"

Catching errors

try { 
  var a = decodeURI('%E0%A4%A'); 
} catch(e) { 
  console.error(e); 
}

// URIError: malformed URI sequence

Specifications

Specification Status Comment
ECMAScript 3rd Edition (ECMA-262) Standard Initial definition.
ECMAScript 5.1 (ECMA-262)
The definition of 'decodeURI' in that specification.
Standard  
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'decodeURI' in that specification.
Standard  
ECMAScript Latest Draft (ECMA-262)
The definition of 'decodeURI' in that specification.
Draft  

Browser compatibility

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
Basic supportChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes

Legend

Full support  
Full support

See also

Schlagwörter des Dokuments und Mitwirkende

Zuletzt aktualisiert von: Sheppy,