When the enter key is pressed, scope.$watch() does not trigger, and location.path does not function as expected

Question

When the enter key is pressed, scope.$watch() does not trigger, and location.path does not function as expected

I've encountered a peculiar problem with AngularJS that I need help with. Here's the situation:

Using scope.watch to monitor text changes in a text field (searchloco).

<input class="typeahead"  ng-model="searchloco" data="{{varu}}" search-bar   type="text">

In addition, I'm utilizing a keydown function to detect the Enter key press and I want to change location.Path upon detection.

Strangely enough, when any key other than Enter is pressed, everything works as expected - the text updates in watch, and the keydown function is triggered properly. However, when the Enter key is pressed, the keypress event fires but the watch cycle does not pick up this key. The statement "Location.path("/")" following the if statement meant to confirm an 'Enter' key also fails to execute until another key (a-z) is typed.

 element.on( 'keydown' , function (e){
            console.log("=== key down pressed === ",e);
            if(e.which == 13){
                location.path('/search/');
                 ...
                 ...

If my explanation isn't clear, please let me know how I can provide further clarification on this puzzling issue.

javascript angularjs

Answer 1

Answer №1

It's recommended to encapsulate your code within a callback function and include $scope.$apply() like this:

element.on('keydown', function (e){
    $scope.$apply(function () {
        console.log("=== key down pressed === ", e);
        if (e.which == 13){
            location.path('/search/');
        }
    });
});

ng-keydown

Alternatively, you can use the Angular directive ng-keydown instead of jQuery-style element.on().

HTML:

<input class="typeahead" ng-keydown="keypress" ng-model="searchloco" data="{{varu}}" search-bar type="text">

JavaScript:

$scope.keypress = function ($event){
     console.log("=== key down pressed === ", $event);
     if ($event.which == 13){
         location.path('/search/');
     }
});

ng-submit

For better cross-platform compatibility, it's best to wrap the input field in a form and utilize ng-submit.

<form ng-submit="go">
    <input class="typeahead" ng-model="searchloco" data="{{varu}}" search-bar type="text">
</form>

JavaScript:

$scope.go = function (){
     location.path('/search/');
});

Answer 2

It's recommended to encapsulate your code within a callback function and include $scope.$apply() like this:

element.on('keydown', function (e){
    $scope.$apply(function () {
        console.log("=== key down pressed === ", e);
        if (e.which == 13){
            location.path('/search/');
        }
    });
});

ng-keydown

Alternatively, you can use the Angular directive ng-keydown instead of jQuery-style element.on().

HTML:

<input class="typeahead" ng-keydown="keypress" ng-model="searchloco" data="{{varu}}" search-bar type="text">

JavaScript:

$scope.keypress = function ($event){
     console.log("=== key down pressed === ", $event);
     if ($event.which == 13){
         location.path('/search/');
     }
});

ng-submit

For better cross-platform compatibility, it's best to wrap the input field in a form and utilize ng-submit.

<form ng-submit="go">
    <input class="typeahead" ng-model="searchloco" data="{{varu}}" search-bar type="text">
</form>

JavaScript:

$scope.go = function (){
     location.path('/search/');
});

Answer 3

Answer №2

Have you experimented with injecting $location into your code and utilizing the line $location.path('/search/');?

Answer 4

Have you experimented with injecting $location into your code and utilizing the line $location.path('/search/');?

When the enter key is pressed, scope.$watch() does not trigger, and location.path does not function as expected

Answer №1

ng-keydown

ng-submit

Answer №2

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