ng-click
The ngClick mandate permits you to indicate custom conduct when a component is clicked.
You can use function or any condition which you specified to execute on click event on specific element
Some Example
Create a new controller
<script>
var myFirstApp = angular.module('myFirstApp', []);
myFirstApp.controller('myCtrl', function($scope) {
$scope.counterStart = 0;
});
</script>
Now you can add html simple code to execute angular ng-click event
<span ng-app="myFirstApp" ng-controller="myCtrl">
<button ng-click="counterStart = counterStart + 1"> Start counter!</button>
<p>{{ counterStart }}</p>
</span>