As same as JavaScript, AngularJS has its own HTML events directives. We can add one or more AngularJS Event listeners to HTML element using directives. Below is a list of AngulaJS event listener 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
These event directives allow us to execute expression or run AngularJS function at certain user event.
AngularJS events do not override HTML events. Both events are executed independently.
With the help of few examples, we can understand it very easily that AngularJS events either execute or run functions. Let’s start it with
1. Expressions
In this example, an expression count = count + 1 is calculated every time event Mouse Move fires. Eventually, value of count is increased by one.
Let’s see its output.
Output
As soon as the web page is loaded first time, count variable is initialized to 0.
Once we move cursor on the text, counter gets increased and printed over web page.
2. Functions
Now there is a turn of functions which are called at the time of user event. In this case, we’ll bind an event handler function and initialized it using AngularJS Controller.
Let’s see an example below:
Output
As soon as the web page is loaded, count variable is initialized to 0.
Once we move cursor on the text, counter gets increased and printed over web page.
Be Connected…
Satyendra Mishra
THREE QUERIES offers easy access to information about business, management, technology and spirituality that helps people and has grown from there. We provide an important knowledge base for those involved in managing, architecture and developing projects of all kinds. With weekly exclusive updates, we keep you in touch with the latest business, management, technology and spirituality thinking.
WE ARE CONNECTED ~ Follow us on social media to get regular updates and opinion on what's happening in the world of SharePoint, front-end, back end web technologies and project management. If you like this article, please share it and follow us at Facebook, Twitter, Instagram, Pinterest and LinkedIn
