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The decodeURIComponent()
function decodes a Uniform Resource Identifier (URI) component previously created by encodeURIComponent
or by a similar routine.
Syntax
decodeURIComponent(encodedURI)
Parameters
encodedURI
- An encoded component of a Uniform Resource Identifier.
Return value
A new string representing the decoded version of the given encoded Uniform Resource Identifier (URI) component.
Exceptions
Throws an URIError
("malformed URI sequence") exception when used wrongly.
Description
Replaces each escape sequence in the encoded URI component with the character that it represents.
Examples
Decoding a Cyrillic URL component
decodeURIComponent("JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B"); // "JavaScript_шеллы"
Catching errors
try { var a = decodeURIComponent("%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 'decodeURIComponent' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'decodeURIComponent' in that specification. |
Standard | |
ECMAScript 2017 Draft (ECMA-262) The definition of 'decodeURIComponent' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
See also
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