AngularJS Events

Toggle navigation
TUTORIAL HOME
AngularJS Events
❮ Previous Next ❯
AngularJS has its own HTML events directives.

AngularJS Events
You can add AngularJS event listeners to your HTML elements by using one or more of these directives:

ng-blur
ng-change
ng-click
ng-copy
ng-cut
ng-dblclick
ng-focus
ng-keydown
ng-keypress
ng-keyup
ng-mousedown
ng-mouseenter
ng-mouseleave
ng-mousemove
ng-mouseover
ng-mouseup
ng-paste
The event directives allows us to run AngularJS functions at certain user events.

An AngularJS event will not overwrite an HTML event, both events will be executed.

Mouse Events
Mouse events occur when the cursor moves over an element, in this order:

ng-mouseenter
ng-mouseover
ng-mousemove
ng-mouseleave
Or when a mouse button is clicked on an element, in this order:

ng-mousedown
ng-mouseup
ng-click
You can add mouse events on any HTML element.

Example
Increase the count variable when the mouse moves over the H1 element:

<div ng-app="myApp" ng-controller="myCtrl">

<h1 ng-mousemove="count = count + 1">Mouse over me!</h1>

<h2>{{ count }}</h2>

</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.count = 0;
});
</script>
»
The ng-click Directive
The ng-click directive defines AngularJS code that will be executed when the element is being clicked.

Example
<div ng-app="myApp" ng-controller="myCtrl">

<button ng-click="count = count + 1">Click me!</button>

<p>{{ count }}</p>

</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.count = 0;
});
</script>
»
You can also refer to a function:

Example
<div ng-app="myApp" ng-controller="myCtrl">

<button ng-click="myFunction()">Click me!</button>

<p>{{ count }}</p>

</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.count = 0;
    $scope.myFunction = function() {
        $scope.count++;
    }
});
</script>
»
Toggle, True/False
If you want to show a section of HTML code when a button is clicked, and hide when the button is clicked again, like a dropdown menu, make the button behave like a toggle switch:

Click Me

Menu:
Pizza
Pasta
Pesce
Example
<div ng-app="myApp" ng-controller="myCtrl">

<button ng-click="myFunc()">Click Me!</button>

<div ng-show="showMe">
    <h1>Menu:</h1>
    <div>Pizza</div>
    <div>Pasta</div>
    <div>Pesce</div>
</div>

</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.showMe = false;
    $scope.myFunc = function() {
        $scope.showMe = !$scope.showMe;
    }
});
</script>
»
The showMe variable starts out as the Boolean value false.

The myFunc function sets the showMe variable to the opposite of what it is, by using the ! (not) operator.

$event Object
You can pass the $event object as an argument when calling the function.

The $event object contains the browser's event object:

Example
<div ng-app="myApp" ng-controller="myCtrl">

<h1 ng-mousemove="myFunc($event)">Mouse Over Me!</h1>

<p>Coordinates: {{x + ', ' + y}}</p>

</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.myFunc = function(myE) {
        $scope.x = myE.clientX;
        $scope.y = myE.clientY;
    }
});
</script>
»

❮ Previous Next ❯