How to make empty an array using AngularJS ?
The task is to make empty an array or delete all elements from the array in AngularJS.
Approach: First example uses the [] notation to reinitialize the array which eventually removes all the elements from the array. Second example sets the length of the array to 0 by using length property, which also empty the array.
Example 1:
<!DOCTYPE HTML> <html> <head> <script src= "//ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"> </script> <script> var myApp = angular.module("app", []); myApp.controller("controller", function ($scope) { $scope.arr = ['Geek', 'GeeksForGeeks', 'gfg']; $scope.emptyArr = function () { $scope.arr = []; }; }); </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <p> How to empty an array in AngularJS </p> <div ng-app="app"> <div ng-controller="controller"> Array = {{arr}}<br><br> <button ng-click='emptyArr()'> Clear Array </button> </div> </div> </body> </html> |
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Output:
Example 2:
<!DOCTYPE HTML> <html> <head> <script src= "//ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"> </script> <script> var myApp = angular.module("app", []); myApp.controller("controller", function ($scope) { $scope.arr = ['Geek', 'GeeksForGeeks', 'gfg']; $scope.emptyArr = function () { $scope.arr.length = 0; }; }); </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <p> How to empty an array in AngularJS </p> <div ng-app="app"> <div ng-controller="controller"> Array = {{arr}}<br><br> <button ng-click='emptyArr()'> Clear Array </button> </div> </div> </body> </html> |
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Output:
