How to find the item index in an array in ANGULAR JS

Question

For example lets take an array example

$scope.users = ['John','Peter'];

How to get the index of John ?

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array — JB Nizet, Apr 20 '16 at 13:29

score 2 · Answer 1 · answered Apr 20 '16 at 13:29

2

$scope.users.indexOf('John')

This is not angular specific. This is a JS array method.

answered Apr 20 '16 at 13:29

Charlie

score 0 · Answer 2 · answered Apr 20 '16 at 13:31

0

try this in your view html {{users.indexOf('John')}} or in your controller use $scope.users.indexOf('John')

answered Apr 20 '16 at 13:31

Hayot

score -1 · Answer 3 · answered Apr 20 '16 at 13:29

Use track by $index.

E.g. <p ng-repeat = "user in $scope.users track by $index"></p>

Then you can determine if it's John:

<p ng-repeat = "user in $scope.users track by $index">
  <span ng-if="$scope.users[$index] === 'John'">Here's John at {{$index}}</span>
</p>

3 Answers3