AngularJS a directive
definition and usage
AngularJS modifies <a> element's default behavior.
when the user clicks on an element with an empty href attribute <a> AngularJS prevents the page from reloading when elements are bound.
Example
Links within AngularJS applications do not reload the page:
<a href="">Click Me!</a>
<div ng-app="">
<a href="">Click Me!</a>
</div>
