How to find the item index in an array in ANGULAR JS [duplicate]

Question

For example lets take an array example

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

How to get the index of John ?

developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — JB Nizet
– JB Nizet, Commented Apr 20, 2016 at 13:29

Charlie · Accepted Answer · 2016-04-20 13:29:13Z

2

$scope.users.indexOf('John')

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

answered Apr 20, 2016 at 13:29

Charlie

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Comments

Hayot · Accepted Answer · 2016-04-20 13:31:31Z

0

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

answered Apr 20, 2016 at 13:31

Hayot

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Katana24 · Accepted Answer · 2016-04-20 13:29:46Z

-1

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>

answered Apr 20, 2016 at 13:29

Katana24

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