How to select an element by its class name in AngularJS ?
Given an HTML document and the task is to select an element by its className using AngularJS.
Approach: The approach is to use the document.querySelector() method to get the element of a particular className. In the first example the element of className class1 is selected and its background color is changed to green. In the second example, 2 elements of same class are selected and some of the CSS is changed.
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) { $scope.getClass = function () { var el = angular.element( document.querySelector(".class1")); el.css('background', 'green'); }; }); </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <p> How to select an element by its class in AngularJS </p> <div ng-app="app"> <div ng-controller="controller"> <p class="class1"> This is GeeksForGeeks </p> <input type="button" value="click here" ng-click="getClass()"> </div> </div> </body> </html> |
Output:
Example 2:
<!DOCTYPE HTML> <html> <head> <script src= "//ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"> </script> <script> var myApp = angular.module("app", []); myApp.controller("controller", function ($scope) { $scope.getClass = function () { var el = angular.element( document.querySelectorAll(".class1")); el.css({ 'background': 'green', 'color': 'white' }); }; }); </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <p> How to select an element by its class in AngularJS </p> <div ng-app="app"> <div ng-controller="controller"> <p class="class1"> This is GeeksForGeeks </p> <p class="class1"> A computer science portal </p> <input type="button" value="click here" ng-click="getClass()"> </div> </div> </body> </html> |
Output:
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