TextScramble.prototype.setText = function setText(newText) {
    var _this = this;

    var oldText = this.el.innerText;
    var length = Math.max(oldText.length, newText.length);
    var promise = new Promise(function (resolve) {
      return _this.resolve = resolve;
    });
    this.queue = [];
    for (var i = 0; i < length; i++) {
      var from = oldText[i] || '';
      var to = newText[i] || '';
      var start = Math.floor(Math.random() * 150);
      var end = start + Math.floor(Math.random() * 150);
      this.queue.push({ from: from, to: to, start: start, end: end });
    }
    cancelAnimationFrame(this.frameRequest);
    this.frame = 0;
    this.update();
    return promise;
  };