resizeStart and resizeEnd events for $(window)

jquery-resize-start-end.js

  (function () {
    var THRESHOLD = 750;
    var timeoutId;
    var resizing = false;
    var win = $(window);

    win.on('resize', function () {
      var timeout = function () {
        clearTimeout(timeoutId);

        timeoutId = setTimeout(function () {
          resizing = false;
          win.trigger('resizeEnd');
        }, THRESHOLD);
      };

      if (!resizing) {
        resizing = true;
        win.trigger('resizeStart');
      }

      timeout();
    });
  }());