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