Preventing / dealing with double button clicks in angular

First you’d better add ngDblclick, when it detects the double click just return false:

<ANY ng-click="buttonClicked()" ng-dblclick="return false">

If you want to wait for the Ajax call to be finished, then you can disable the button by setting the ng-disabled

<ANY ng-click="buttonClicked()" ng-dblclick="return false;" ng-disabled="flag">

And in your controller, you can do

$scope.flag = false;
$scope.buttonClicked = function() {
    $scope.flag = true;
    Service.doService.then(function(){
        //this is the callback for success
        $scope.flag = false;
    }).error(function(){
        //this is the callback for the error
        $scope.flag = false;
    })
}

You need to handle both case when the ajax call is successfull or failed, since if it is failed, you don’t want it show as diabled to confuse user.