AngularJS index of issue

Question

I am trying to find whether the provided element is present in array or not using indexOf function.

But, I am not able to get whether true or false based on condition.

I am given the fiddle url .

Kindly, I need some assistance. http://jsfiddle.net/vMzSq/17/

<div ng-controller="MyCtrl">
 Hello, {{name}}!<br>
 Super? {{contains(name)}}  
 </div>

var myApp = angular.module('myApp',[]);

function MyCtrl($scope) {
    $scope.name = 'Sai';
    $scope.searchNames = ['karthik','Sai']
    $scope.contains = function(searchString) {
        return searchString.indexOf(searchNames) != -1;
}

Shomz · Accepted Answer · 2015-08-05 04:48:40Z

It needs to be $scope.searchNames, not just searchNames (it's undefined). Also, you need to do array.indexOf(element), not element.indexOf(array):

function MyCtrl($scope) {
  $scope.name = 'Sai';
  $scope.searchNames = ['karthik','Sai']
  $scope.contains = function(searchString) {
      return $scope.searchNames.indexOf(searchString) != -1;
      //  HERE ^^^
  }
}

http://jsfiddle.net/vMzSq/23/

Or, if you don't need it in the scope, you can remove it, but be consistent:

function MyCtrl($scope) {
  $scope.name = 'Sai';
  var searchNames = ['karthik','Sai']
  $scope.contains = function(searchString) {
      return searchNames.indexOf(searchString) != -1;
  }
}

http://jsfiddle.net/vMzSq/22/

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