Trouble with setting the scope input value

HTML

 <input type="text" ng-model="connector_form.a" class="form-control col-md-7 col-xs-12"  placeholder="{productname}">

Controller:

$scope.connector_form.a = "test";

Not functioning as expected.

When I modify it to:

HTML

 <input type="text" ng-model="connector_form" class="form-control col-md-7 col-xs-12"  placeholder="{productname}">

Controller:

$scope.connector_form = "test";

It works correctly.

I may be new to this, but I am struggling to find the solution.

Answer №1

In order to ensure proper functionality, it is imperative to initialize an empty object.

$scope.connector_form = {};

Subsequently,

$scope.connector_form.a = "test";

If this step is not followed, the variable $scope.connector_form will remain undefined.

Answer №2

When using AngularJS, the ng-model directive will generate a property, but only if it is added to an existing object.

If $scope.connector_form is not already defined, the a property cannot be attached. Therefore, you need to declare $scope.connector_form in your controller before using it.

angular.module('appModule', [])
.controller('myController', function($scope) {
    $scope.connector_form = {};
});

To assign an initial value:

angular.module('appModule', [])
.controller('myController', function($scope) {
    $scope.connector_form = {
        a: 'default value';
    };
});

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