Trying Javascript StreamReader

Stream in javascript.js

var stream = new ReadableStream({
  start(controller) {
   console.log(controller)
   controller.enqueue('Hello');
    controller.enqueue('12312312313123')
	controller.close();
  },
  pull(controller) {

  },
  cancel(reason) {

  }
})

var temp = '';
var reader = stream.getReader();

function readStream({ value, done }) {
  if (done) {
    console.log('>>>> done', temp)
    return
  }
  
  console.log(value, done);
  temp += value;
  return reader.read().then(readStream)
}

reader.read().then(readStream)