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  • Understanding ng-repeat special variables in AngularJS

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    Hello Readers,

    Hope you are doing good today.

    Today on My blog, I am going to explain about the ng-repeat special variables in AngularJS. The nag-repeat directive has a set of special variables which can be used while iterating the collection.

    These Special variables are:

    $index

    $first

    $middle

    $last

    In below code we are iterating the collection of friends and checking the position of value with the help of ng-repeat special variables.

    <div ng-app="app" ng-controller="ctrl">
    					 <ul>
    						 <li ng-repeat="friend in friends">
    //The $first, $middle and $last returns a boolean value depending on whether the current item is the first, middle or last element in the collection being iterated.
    							 <div>							 			
    								 <span ng-if="$first">
    								 	<strong>{{friend.name}} (first element found)</strong>
    								 </span>
    								 <span ng-if="$middle">
    								 	<strong>{{friend.name}} (middle element found)</strong>
    								 </span>
    								 <span ng-if="$last">
    								 	<strong>{{friend.name}} (last element found)</strong>
    								 </span>
    							 </div>
    						 </li>
    					 </ul>
    				 </div>

    In below script we create the friends array.

    var app = angular.module("app", []);
     
     app.controller("ctrl", function ($scope) {
     $scope.friends = [{ name: 'Rafi', gender: 'boy' },
    		 { name: 'Kajal', gender: 'girl' },
    		 { name: 'deepak', gender: 'boy' },
    		 { name: 'sonam', gender: 'girl' }];
     });
    

    I hope this will help you. Please feel free to give us your feedback in comments.

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