Ways to retrieve the <select> value in AngularJS

Having trouble passing the selected value from my tab to my $scope object. Here's the snippet of my HTML code.

<div ng-controller="RouteController">
            <select ng-model="selector" ng-options="opt as opt.label for opt in options">

            </select>
            <button ng-click="selectFn()">Go</button>
</div>

Below is my JS code.

sampleApp.controller('RouteController', function($scope){

        $scope.options=[
            {label: '1', url:'1.html'},
            {label: '2', url:'2.html'}  

        ];
        $scope.selectFn = function($scope){
                alert("selector");

        }

    });

Struggling to pass the selected item's value to the alert function.

Answer №1

Using ng-model like this may lead to trouble as it might not update when the value changes:

ng-model="selector"

A better practice for using ng-model would be:

ng-model="opt.selector"

By doing this, it can be accessed by $scope in the following way:

$scope.opt.selector

Therefore, the code should be modified as follows:

$scope.selectFn = function(){
     console.log($scope.opt.selector);
}

In short, when using ng-model, make sure to include a dot.

Answer №2

Building on the explanation provided by Vineet, there is no need for any additional steps to transmit the value. Angular's model binding handles this process seamlessly for you.

By simply having the following code snippet: ng-model="selector"...

Every time the selected value changes, the selector object is automatically updated within $scope with the new value. Therefore, just run selectFn() and ensure that you are accurately referencing your object via $scope:

$scope.selectFn = function(){
    alert($scope.selector);
}

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