Function isValidDate

code/songhop/www/lib/angular/angular.js:19777–19780

(value)

    }

    function isValidDate(value) {
      // Invalid Date: getTime() returns NaN
      return value && !(value.getTime && value.getTime() !== value.getTime());
    }

    function parseObservedDateValue(val) {
      return isDefined(val) ? (isDate(val) ? val : parseDate(val)) : undefined;