Using lodash not able to validate selected date

Question

I try to validate selected date from angularjs weather date is selected or not. So for this i use lodash.isEmpty it returns empty but the date is selected.

 else if(lodash.isEmpty(exchangeRate.validTo)){
        console.log(exchangeRate.validTo);
        $scope.errorvalidTo = 'invalid'
    }

i have selected date but it always says empty

Answer 1

Well, _.isEmpty(new Date()) will always return true, because Object.keys(new Date()).length === 0. If you look at the source code of the isEmpty func : you can see this:

      ...
      for (var key in value) {
        if (hasOwnProperty.call(value, key)) {
         return false;
        }
      }
     return true;

A Date object has no key/values so it'll return true.

use !_.isDate(...) could be a better idea