W3cubDocs

/DOM

TextDecoder

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The TextDecoder interface represents a decoder for a specific method, that is a specific character encoding, like utf-8, iso-8859-2, koi8, cp1261, gbk, etc. A decoder takes a stream of bytes as input and emits a stream of code points. For a more scalable, non-native library, see StringView – a C-like representation of strings based on typed arrays.

Example

let win1251decoder = new TextDecoder('windows-1251');
let bytes = new Uint8Array([207, 240, 232, 226, 229, 242, 44, 32, 236, 232, 240, 33]);
console.log(win1251decoder.decode(bytes)); // Привет, мир!

Constructor

TextDecoder()
Returns a newly constructed TextDecoder that will generate a code point stream with the decoding method specified in parameters.

Properties

The TextDecoder interface doesn't inherit any properties.

TextDecoder.encodingRead only
Is a DOMString containing the name of the decoder, that is a string describing the method the TextDecoder will use.
TextDecoder.fatalRead only
Is a Boolean indicating whether the error mode is fatal.
TextDecoder.ignoreBOMRead only
Is a Boolean indicating whether the byte order marker is ignored.

Methods

The TextDecoder interface doesn't inherit any method.

TextDecoder.decode()
Returns a DOMString containing the text decoded with the method of the specific TextDecoder object.

Specifications

Specification Status Comment
Encoding
The definition of 'TextDecoder' in that specification.
Living Standard Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 38 ? 19
19
18
Implemented a slightly different version of the spec.
No 25 10.1
Available in workers 38 ? 20 No 25 10.1
TextDecoder() constructor 38 ? 19
19
18
Implemented a slightly different version of the spec.
No 25 10.1
decode 38 ? 19
19
18
Implemented a slightly different version of the spec.
No 25 10.1
encoding 38 ? 19
19
18
Implemented a slightly different version of the spec.
No 25 10.1
fatal ? ? ? ? ? 10.1
ignoreBOM ? ? ? ? ? 10.1
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 38 38 ? 19
19
18
Implemented a slightly different version of the spec.
? 10.1 ?
Available in workers 38 38 ? 20 ? 10.1 ?
TextDecoder() constructor 38 38 ? 19
19
18
Implemented a slightly different version of the spec.
? 10.1 ?
decode 38 38 ? 19
19
18
Implemented a slightly different version of the spec.
? 10.1 ?
encoding 38 38 ? 19
19
18
Implemented a slightly different version of the spec.
? 10.1 ?
fatal ? ? ? ? ? 10.1 ?
ignoreBOM ? ? ? ? ? 10.1 ?

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder