blob to buffer in javascript

index.tsx
const blob = new Blob(["Hello, World"], { type: 'text/plain' });

const fileReader = new FileReader();
fileReader.onload = function(event) {
    const buffer = event.target.result;
    console.log(buffer); // This will be the buffer representation of the blob
};

fileReader.readAsArrayBuffer(blob);
300 chars
10 lines