Function isRectEqual

Sortable.js:473–475

(rect1, rect2)

    return dst;
  }
  function isRectEqual(rect1, rect2) {
    return Math.round(rect1.top) === Math.round(rect2.top) && Math.round(rect1.left) === Math.round(rect2.left) && Math.round(rect1.height) === Math.round(rect2.height) && Math.round(rect1.width) === Math.round(rect2.width);
  }
  var _throttleTimeout;
  function throttle(callback, ms) {
    return function () {