Function cachedToggleClass

test/angular/1.6/angular.js:24262–24270

(ctrl, className, switchValue)

  }

  function cachedToggleClass(ctrl, className, switchValue) {
    if (switchValue && !ctrl.$$classCache[className]) {
      ctrl.$$animate.addClass(ctrl.$$element, className);
      ctrl.$$classCache[className] = true;
    } else if (!switchValue && ctrl.$$classCache[className]) {
      ctrl.$$animate.removeClass(ctrl.$$element, className);
      ctrl.$$classCache[className] = false;
    }
  }

  function toggleValidationCss(ctrl, validationErrorKey, isValid) {
    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';