textencoder encodeinto src dest

• src {string} The text to encode.
• dest {Uint8Array} The array to hold the encode result.
• Returns: {Object}
  • read {number} The read Unicode code units of src.
  • written {number} The written UTF-8 bytes of dest.

UTF-8 encodes the src string to the dest Uint8Array and returns an object containing the read Unicode code units and written UTF-8 bytes.

const encoder = new TextEncoder();
const src = 'this is some data';
const dest = new Uint8Array(10);
const { read, written } = encoder.encodeInto(src, dest);