How can I detect onKeyUp in AngularJS?

For everyone looking for that feature today, please use the official ng-keyup directive:

<input type="text" ng-keyup="{expression}" />

EDIT: see second answer below from maklemenz which refers to the new built-in ng-keyup directive

You could use the angular-ui library:

With angular-ui, you can just do

<input ui-event="{keyup: 'myFn($event)'}"

If you don't want to use another library, the most efficient and simple way to do this is:

myApp.directive('onKeyup', function() {
  return function(scope, elm, attrs) {
    elm.bind("keyup", function() {
      scope.$apply(attrs.onKeyup);
    });
  };
});

HTML:

<input on-keyup="count = count + 1">

Edit: If you wanted to detect which key was pressed, you have two basic options really. You could add an attribute to the directive to handle the allowed keys within the directive, or you could pass the key pressed to your controller. I would generally recommend the directive handles the key method.

Here's an example of both ways: http://jsfiddle.net/bYUa3/2

You'll have to create your custom directive if default directives are not enough. Something like this, may be?

<!doctype html>
<html lang="en" ng-app="app">
  <body ng-controller="ctrl">
    <input ng-onkeyup="keyup()"/>
    <script src="js/lib/angular-1.0.0.min.js"></script>
    <script>
      angular.module('app', []).directive('ngOnkeyup', function() {
        return {
          restrict: 'A',
          scope: {
            func: '&ngOnkeyup'
          },
          link: function( scope, elem, attrs ) {
            elem.bind('keyup', scope.func);
          }
        };
      });

      function ctrl($scope) {
        $scope.keyup = function() {
          alert('keyup fired');
        };
      }
    </script>
  </body>
</html>

How can I detect onKeyUp in AngularJS?

Related

Recent Posts