Convert Blob to String in JavaScript [cn] 字节转字符串

js-blob-to-string.md

TL;DR: Use the readAsText() method.

Example

const blb    = new Blob(["Lorem ipsum sit"], {type: "text/plain"});
const reader = new FileReader();

// This fires after the blob has been read/loaded.
reader.addEventListener('loadend', (e) => {
  const text = e.srcElement.result;
  console.log(text);
});

// Start reading the blob as text.
reader.readAsText(blb);