The decodeURIComponent()
function decodes a Uniform Resource Identifier (URI) component previously created by encodeURIComponent
or by a similar routine.
The decodeURIComponent()
function decodes a Uniform Resource Identifier (URI) component previously created by encodeURIComponent
or by a similar routine.
decodeURIComponent(encodedURI)
encodedURI
An encoded component of a Uniform Resource Identifier.
A new string representing the decoded version of the given encoded Uniform Resource Identifier (URI) component.
Throws an URIError
("malformed URI sequence") exception when used wrongly.
Replaces each escape sequence in the encoded URI component with the character that it represents.
decodeURIComponent('JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B'); // "JavaScript_шеллы"
try { const a = decodeURIComponent('%E0%A4%A'); } catch (e) { console.error(e); } // URIError: malformed URI sequence
decodeURIComponent cannot be used directly to parse query parameters from a URL. It needs a bit of preparation.
function decodeQueryParam(p) { return decodeURIComponent(p.replace(/\+/g, ' ')); } decodeQueryParam('search+query%20%28correct%29'); // 'search query (correct)'
Desktop | Mobile | Server | ||||||||||||
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Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
decodeURIComponent |
1 |
12 |
1 |
5.5 |
7 |
1.1 |
4.4 |
18 |
4 |
10.1 |
1 |
1.0 |
1.0 |
0.10.0 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent