TextDecoderStream: readable property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨September 2022⁩.

Note: This feature is available in Web Workers.

The readable read-only property of the TextDecoderStream interface returns a ReadableStream that emits decoded strings.

Value

A ReadableStream.

Examples

This example creates a TextDecoderStream that decodes UTF-8 encoded binary data. It writes some encoded binary data to the writable stream, then reads the decoded text from the readable stream.

js
const stream = new TextDecoderStream(); // Write data to be decoded const data = Uint8Array.fromBase64("5L2g5aW95LiW55WM"); const writer = stream.writable.getWriter(); writer.write(data); writer.close(); // Read decoded data const reader = stream.readable.getReader(); let done = false; let output = ""; while (!done) { const result = await reader.read(); if (result.value) { output += result.value; } done = result.done; } console.log(output); // 你好世界 

Specifications

Specification
Streams
# dom-generictransformstream-readable

Browser compatibility

See also