angularjsHow can I use the AngularJS keydown event to trigger a function?

To use the AngularJS keydown event to trigger a function, you need to use the ng-keydown directive. This directive allows you to specify an expression to execute when a key is pressed. The expression will be evaluated within the scope of the current controller.

For example, the following code block will trigger a function named keydownFn when the enter key is pressed:

<input type="text" ng-keydown="keydownFn($event)" />

The $event parameter is an $event object that contains information about the key that was pressed.

In the controller, the keydownFn function can be defined as follows:

$scope.keydownFn = function($event) {
  if ($event.keyCode == 13) {
    // do something when the enter key is pressed
  }
}

The $event.keyCode property contains the key code of the key that was pressed. In this example, the key code 13 represents the enter key.

For more information, see the AngularJS ng-keydown directive documentation.

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