Function handleCSSClassChanges

test/angular/1.6/angular.js:5536–5566

()

    }

    function handleCSSClassChanges() {
      forEach(postDigestElements, function(element) {
        var data = postDigestQueue.get(element);
        if (data) {
          var existing = splitClasses(element.attr('class'));
          var toAdd = '';
          var toRemove = '';
          forEach(data, function(status, className) {
            var hasClass = !!existing[className];
            if (status !== hasClass) {
              if (status) {
                toAdd += (toAdd.length ? ' ' : '') + className;
              } else {
                toRemove += (toRemove.length ? ' ' : '') + className;
              }
            }
          });

          forEach(element, function(elm) {
            if (toAdd) {
              jqLiteAddClass(elm, toAdd);
            }
            if (toRemove) {
              jqLiteRemoveClass(elm, toRemove);
            }
          });
          postDigestQueue.delete(element);
        }
      });
      postDigestElements.length = 0;
    }


    function addRemoveClassesPostDigest(element, add, remove) {