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The decodeURIComponent()
function decodes a Uniform Resource Identifier (URI) component previously created by encodeURIComponent
or by a similar routine.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
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 Latest Draft (ECMA-262) The definition of 'decodeURIComponent' in that specification. |
Draft |
Browser compatibility
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic support | Chrome Full support Yes | Edge Full support Yes | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes | nodejs Full support Yes |
Legend
- Full support
- Full support