How can I detect keydown or keypress event in angular.js?

Question

I\'m trying to get the value of a mobile number textbox to validate its input value using angular.js. I\'m a newbie in using angular.js and not so sure how to implement thos

Answer 1

Update:

ngKeypress, ngKeydown and ngKeyup are now part of AngularJS.

Read more here:

https://docs.angularjs.org/api/ng/directive/ngKeypress https://docs.angularjs.org/api/ng/directive/ngKeydown https://docs.angularjs.org/api/ng/directive/ngKeyup

Earlier solutions:

Solution 1: Use ng-change with ng-model

JS:

function RegisterDataController($scope) {       
   $scope.keydown = function() {
        /* validate $scope.mobileNumber here*/
   };
}

Solution 2. Use $watch

JS:

$scope.$watch("mobileNumber", function(newValue, oldValue) {
    /* change noticed */
});