AngularJS Events
An Events in AngularJS can be used to perform particular tasks, based on the action taken. Both Angular Event & the HTML Event will be executed & will not overwrite with an HTML Event. It can be added using the Directives mentioned below:
- ng-mousemove: The movement of the mouse leads to the execution of the event.
- ng-mouseup: Movement of the mouse upwards leads to the execution of the event.
- ng-mousedown: Movement of the mouse downwards leads to the execution of the event.
- ng-mouseenter: Click of the mouse button leads to the execution of the event.
- ng-mouseover: Hovering the mouse leads to the execution of the event.
- ng-cut: Cut operation leads to the execution of the event.
- ng-copy: Copy operation leads to the execution of the event.
- ng-keypress: Press of key leads to the execution of the event.
- ng-keyup: Press of upward arrow key leads to the execution of the event.
- ng-keydown: Press of downward arrow key leads to the execution of the event.
- ng-click: Single click leads to the execution of the event.
- ng-dblclick: Double click leads to the execution of the event.
- ng-blur: Fired when an HTML element loses its focus.
- ng-change: It is used whenever the value of an input element changes.
- ng-focus: It is used to apply custom behavior when an element is focused.
- ng-paste: It is used to specify custom behavior functions when the text in input fields is pasted into an HTML element.
- ng-mouseleave: It is used to apply custom behavior when a mouse-leave event occurs on a specific HTML element.
Example 1: This example illustrates action on the occurrence of any Mouse Movement Event. This includes events of dragging the mouse to cause movement of the cursor on the screen.
HTML
<!DOCTYPE html><html> <head> <script src= </script></head> <body> <p> Move the mouse over GeeksforGeeks to increase the Total Count. </p> <div ng-app="App1" ng-controller="Ctrl1"> <h1 ng-mousemove="count = count + 1"> GeeksforGeeks </h1> <h2>Total Count:</h2> <h2>{{ count }}</h2> </div> <script> var app = angular.module('App1', []); app.controller('Ctrl1', function($scope) { $scope.count = 0; }); </script></body></html> |
Output:
ng-mousemove Directive
Example 2: This example shows the $event obj for calling the function on Mouse Movement Event. Here, the $event object enables the occurrence of a mouse movement event.
HTML
<!DOCTYPE html><html> <head> <script src= </script></head> <body> <p> Mouse over GeeksforGeeks to display the value of clientX and clientY. </p> <div ng-app="App1" ng-controller="Ctrl1"> <h1 ng-mousemove="myFunc($event)"> GeeksforGeeks </h1> <h4>Coordinates: {{x + ', ' + y}}</h4> </div> <script> var app = angular.module('App1', []); app.controller('Ctrl1', function($scope) { $scope.myFunc = function(gfg) { $scope.x = gfg.clientX; $scope.y = gfg.clientY; } }); </script></body></html> |
Output:
ng-mousemove Directive
Example 3: This example shows the action being performed for On Click Event. Here, the click of the mouse button leads to the performance of some action.
HTML
<!DOCTYPE html><html> <head> <script src= </script></head> <body> <p> Click on GeeksforGeeks to increase the Total Count. </p> <div ng-app="App1" ng-controller="Ctrl1"> <button ng-click="count = count + 1"> GeeksforGeeks </button> <h2>Total Count:</h2> <h2>{{ count }}</h2> </div> <script> var app = angular.module('App1', []); app.controller('Ctrl1', function($scope) { $scope.count = 0; }); </script></body></html> |
Output:
ng-click Directive
Please Login to comment...