[function] Submit form on pressing Enter with AngularJS

In this particular case, what options do I have to make these inputs call a function when I press Enter?

// HTML view //
<form>
    <input type="text" ng-model="name" <!-- Press ENTER and call myFunc --> />
    <br />
    <input type="text" ng-model="email" <!-- Press ENTER and call myFunc --> />
</form>

// Controller //
.controller('mycontroller', ['$scope',function($scope) {
    $scope.name = '';
    $scope.email = '';
    // Function to be called when pressing ENTER
    $scope.myFunc = function() {
       alert('Submitted');
    };
}])

Use ng-submit and just wrap both inputs in separate form tags:

<div ng-controller="mycontroller">

  <form ng-submit="myFunc()">
    <input type="text" ng-model="name" <!-- Press ENTER and call myFunc --> />
  </form>

  <br />

  <form ng-submit="myFunc()">
    <input type="text" ng-model="email" <!-- Press ENTER and call myFunc --> />
  </form>

</div>

Wrapping each input field in its own form tag allows ENTER to invoke submit on either form. If you use one form tag for both, you will have to include a submit button.

If you want to call function without form you can use my ngEnter directive:

Javascript:

angular.module('yourModuleName').directive('ngEnter', function() {
        return function(scope, element, attrs) {
            element.bind("keydown keypress", function(event) {
                if(event.which === 13) {
                    scope.$apply(function(){
                        scope.$eval(attrs.ngEnter, {'event': event});
                    });

                    event.preventDefault();
                }
            });
        };
    });

HTML:

<div ng-app="" ng-controller="MainCtrl">
    <input type="text" ng-enter="doSomething()">    
</div>

I submit others awesome directives on my twitter and my gist account.

Just wanted to point out that in the case of having a hidden submit button, you can just use the ngShow directive and set it to false like so:

HTML

<form ng-submit="myFunc()">
    <input type="text" name="username">
    <input type="submit" value="submit" ng-show="false">
</form>

I wanted something a little more extensible/semantic than the given answers so I wrote a directive that takes a javascript object in a similar way to the built-in ngClass:

HTML

<input key-bind="{ enter: 'go()', esc: 'clear()' }" type="text"></input>

The values of the object are evaluated in the context of the directive's scope - ensure they are encased in single quotes otherwise all of the functions will be executed when the directive is loaded(!)

So for example: esc : 'clear()' instead of esc : clear()

Javascript

myModule
    .constant('keyCodes', {
        esc: 27,
        space: 32,
        enter: 13,
        tab: 9,
        backspace: 8,
        shift: 16,
        ctrl: 17,
        alt: 18,
        capslock: 20,
        numlock: 144
    })
    .directive('keyBind', ['keyCodes', function (keyCodes) {
        function map(obj) {
            var mapped = {};
            for (var key in obj) {
                var action = obj[key];
                if (keyCodes.hasOwnProperty(key)) {
                    mapped[keyCodes[key]] = action;
                }
            }
            return mapped;
        }
        
        return function (scope, element, attrs) {
            var bindings = map(scope.$eval(attrs.keyBind));
            element.bind("keydown keypress", function (event) {
                if (bindings.hasOwnProperty(event.which)) {
                    scope.$apply(function() {
                         scope.$eval(bindings[event.which]);
                    });
                }
            });
        };
    }]);

If you only have one input you can use the form tag.

<form ng-submit="myFunc()" ...>

If you have more than one input, or don't want to use the form tag, or want to attach the enter-key functionality to a specific field, you can inline it to a specific input as follows:

<input ng-keyup="$event.keyCode == 13 && myFunc()" ...>

Very good, clean and simple directive with shift + enter support:

app.directive('enterSubmit', function () {
    return {
        restrict: 'A',
        link: function (scope, elem, attrs) {
            elem.bind('keydown', function(event) {
                 var code = event.keyCode || event.which;
                 if (code === 13) {
                       if (!event.shiftKey) {
                            event.preventDefault();
                            scope.$apply(attrs.enterSubmit);
                       }
                 }
            });
        }
    }
});

Another approach would be using ng-keypress ,

<input type="text" ng-model="data" ng-keypress="($event.charCode==13)? myfunc() : return"> 

Submit an input on pressing Enter with AngularJS - jsfiddle

Will be slightly neater using a CSS class instead of repeating inline styles.

CSS

input[type=submit] {
    position: absolute;
    left: -9999px;
}

HTML

<form ng-submit="myFunc()">
    <input type="text" ng-model="name" />
    <br />
    <input type="text" ng-model="email" />
    <input type="submit" />
</form>

If you want data validation too

<!-- form -->
<form name="loginForm">
...
  <input type="email" ng-keyup="$loginForm.$valid && $event.keyCode == 13 && signIn()" ng-model="email"... />
  <input type="password" ng-keyup="$loginForm.$valid && $event.keyCode == 13 && signIn()" ng-model="password"... />
</form>

The important addition here is $loginForm.$valid which will validate the form before executing function. You will have to add other attributes for validation which is beyond the scope of this question.

Good Luck.

you can simply bind @Hostlistener with the component, and rest will take care by it. It won't need binding of any method from its HTML template.

@HostListener('keydown',['$event'])
onkeydown(event:keyboardEvent){
  if(event.key == 'Enter'){
           // TODO do something here
           // form.submit() OR API hit for any http method
  }
}

The above code should work with Angular 1+ version

FWIW - Here's a directive I've used for a basic confirm/alert bootstrap modal, without the need for a <form>

(just switch out the jQuery click action for whatever you like, and add data-easy-dismiss to your modal tag)

app.directive('easyDismiss', function() {
    return {
        restrict: 'A',
        link: function ($scope, $element) {

            var clickSubmit = function (e) {
                if (e.which == 13) {
                    $element.find('[type="submit"]').click();
                }
            };

            $element.on('show.bs.modal', function() {
                $(document).on('keypress', clickSubmit);
            });

            $element.on('hide.bs.modal', function() {
                $(document).off('keypress', clickSubmit);
            });
        }
    };
});