How to evaluate javascript predefined function in angular expressions

Question

I want to evaluate some js predefined function in angular expression. For example new Date(). But, not able to do that. If it is possible, please explain how to do that.

For example:

<input type="text" ng-init="yearFromSelector=new Date().getFullYear()"  ng-model="yearFromSelector">

or

{{new Date().getFullYear()}}

I know that we can do that in controller and send value to view using $scope. But, I want to know is it possible to do it in angular expressions itself.

Thanks in advance.

Please show, the code of your controller.

Subhra Jyoti Lahiri
– Subhra Jyoti Lahiri

2017-01-06 12:39:42 +00:00
Commented Jan 6, 2017 at 12:39 — Subhra Jyoti Lahiri
– Subhra Jyoti Lahiri, Commented Jan 6, 2017 at 12:39

dfsq · Accepted Answer · 2017-01-06 13:40:42Z

2

You can't construct instances in Angular expressions. You will need to use some controller code:

ng-init="yearFromSelector = getDate().getFullYear()"

where you would need to define getDate helper function either in controller or globally in run block (and attach it to $rootScope):

$scope.getDate = function() {
  return new Date
}

Read about what Angular expression allow and what do not: https://docs.angularjs.org/guide/expression

edited Jan 6, 2017 at 13:40

answered Jan 6, 2017 at 12:41

dfsq

193k26 gold badges244 silver badges261 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Sai Over a year ago

Yeah, I have already tried the same using controller. But, I want to know how to do it in expression itself if possible.

Collectives™ on Stack Overflow

How to evaluate javascript predefined function in angular expressions

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related