TextDecoder

TextDecoder()

Returns a newly constructedTextDecoderthat will generate a code point stream with the decoding method specified in parameters.

TheTextDecoderinterface doesn't inherit any properties.

TextDecoder.encodingRead only

A string containing the name of the decoder, which is a string describing the method theTextDecoderwill use.

TextDecoder.fatalRead only

ABooleanindicating whether the error mode is fatal.

TextDecoder.ignoreBOMRead only

ABooleanindicating whether thebyte order markis ignored.

TheTextDecoderinterface doesn't inherit any methods.

TextDecoder.decode()

Returns a string containing the text decoded with the method of the specificTextDecoderobject.

This example shows how to decode a Chinese/Japanese character ,as represented by five different typed arrays:Uint8Array,Int8Array,Uint16Array,Int16Array,andInt32Array.

let utf8decoder = new TextDecoder(); // default 'utf-8' or 'utf8'

let u8arr = new Uint8Array([240, 160, 174, 183]);
let i8arr = new Int8Array([-16, -96, -82, -73]);
let u16arr = new Uint16Array([41200, 47022]);
let i16arr = new Int16Array([-24336, -18514]);
let i32arr = new Int32Array([-1213292304]);

console.log(utf8decoder.decode(u8arr));
console.log(utf8decoder.decode(i8arr));
console.log(utf8decoder.decode(u16arr));
console.log(utf8decoder.decode(i16arr));
console.log(utf8decoder.decode(i32arr));

In this example, we decode the Russian text "Привет, мир!", which means "Hello, world." In ourTextDecoder()constructor, we specify the Windows-1251 character encoding, which is appropriate for Cyrillic script.

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

• TheTextEncoderinterface describing the inverse operation.
• Ashimallowing to use this interface in browsers that do not support it.
• Node.js supports global export from v11.0.0