ngEnter is an angularjs library that triggers an expression when the enter key is pressed.
https://kimsunwook.github.io/ngEnter
bower install ng-enter --save
Copy-paste the <script> into your <body>.
<script src=".bower_components/ng-enter/ngEnter.js"></script>
or
<script src="https://cdn.rawgit.com/KimSunWook/ngEnter/v1.1.3/ngEnter.js"></script>
Make sure you include the module 'ngEnter' in your application config
angular.module('myApp', [
'ngEnter',
...
]);
<input
<!-- Invoked when you press the ENTER key -->
ng-enter="message = 'ENTER is pressed.'"
<!-- Called after duration (ms) after pressing the ENTER key. -->
ng-enter-after="message = 'ENTER was pressed 1 second ago.'"
<!-- If you do not put object, $enter and $entered values are stored in scope. -->
ng-enter-model="model"
<!-- The value of $enter lasts true and the default value is 700 (ms). -->
ng-enter-duration="1000"
ng-class="[
<!-- The value of $enter becomes true on click and turns false after duration (ms). -->
{'enter_classes':model.$enter},
<!-- The value of $entered is true when clicked and does not change. -->
{'entered_classes':model.$entered}
]">
Once enter is pressed
$scope.message === 'enter pressed' // true
$scope.model.$enter === true // true
$scope.model.$entered === true // true
Easy!