Ways to retrieve HTML variable within Java-script using AngularJS

Currently working on populating a select list in angularJS with the following code snippet:

<select class="form-control" ng-model="NewProduct.category" ng-options="category.id as category.name for category in Categories | orderBy:['name']" ng-change="update(NewProduct.category)" required></select>

When there is a change, it triggers the update function which only prints out the category ID.

$scope.update = function (value) {
    alert ($scope.NewProduct.category);
};

However, I am aiming to access both the category ID and category name within this update function. I attempted:

$scope.update = function (value) {
    alert ($scope.NewProduct.category.id);
    alert ($scope.NewProduct.category.name);

};

Despite trying this, it keeps alerting undefined, undefined. How can I successfully obtain both the category ID and category name in the update function?

Answer №1

Make the adjustment in your html like this:

<select class="form-control" ng-model="NewProduct.category" ng-options="category as category.name for category in Categories | orderBy:['name']" ng-change="update(NewProduct.category)" required></select>

This change will save the complete category information in NewProduct.category rather than just the id

Answer №2

If you want to modify it, consider this:

$scope.change = function(data) {
   alert(data.id);
   alert(data.name);
};

Answer №3

When calling the update function, remember to pass in the current category and access it using the value parameter.

$scope.update = function (value) {
    alert (value.id);
    alert (value.name);
};

Answer №4

Consider appending toString() to every value before using them:

alert (value.id.toString());
alert (value.name.toString());

Answer №5

When using ng-options, make sure to pass an object like this:

ng-options="category as category.name for category in Categories | orderBy:['name']"

This way, you will receive the full object in the update function.

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