JavaScript typed array study demo1

test.js

(function() {
  "use strict";

  var text = 'abcdef';
  var text_len = text.length;

  var ar = new Array(text_len);

  for (var i = 0;i < text_len;i++) {
    ar[i] = text.charCodeAt(i);
  }

  var buf = new Uint32Array(ar);
  var buf_len = buf.byteLength;

  console.log(buf);
  console.log("buf_len: " + buf_len);

  var a = '';

  for (var i = 0;i < buf_len;i++) {
    a += String.fromCharCode(buf[i]);
  }

  console.log(a);
})();