Acquiring a fresh scope in Angular via a different component

In my project, I am developing an app using a component-based approach with Angular 1.5.5.

As part of this development, I am utilizing d3js to create some elements with the class .floating-node. For each of these nodes, I am creating a new $scope and appending it inside a compiled component.

The relevant section of code looks like this:

    nodeEnter.each(() => {
        let childScope = this.$scope.$new();
        childScope.test = "test";
        let compiled = this.$compile('<mycomponent></mycomponent>')(childScope);
        (this.mainContainer).append(compiled);
    });

This portion of the code is functioning perfectly.

Now, let's take a look at the mycomponent:

export default class Mycomponent {
    constructor($scope) {
        console.log($scope.test);         // undefined
        console.log($scope.$parent.test); // test
    }
}
Mycomponent.$inject = ["$scope"];

However, when I enter the mycomponent, I encounter difficulties accessing the correct $scope.

After checking the $id, I have realized that the childScope.$id increments in Mycomponent as $scope.$id += 1.

While I understand that I can navigate using $scope.$parent, doing so may result in unnecessary creation of $scope objects, which is not ideal especially within a loop.

So, the question remains - how can I achieve consistency with the same $scope across components?

Answer №1

It appears that there may be some confusion. When using the .component method, it will consistently generate its own unique scope and the use of $scope is not necessary within components. If you believe it is essential for your situation, consider utilizing the .directive method instead. However, I suggest reevaluating the design of your component to better suit its intended purpose.

Answer №2

There is no need for you to utilize $scope.$new() in this scenario because $compile is already generating a fresh scope instance.

A simpler solution to resolve your problem would be to use a querySelector, perhaps something like the code snippet below:

newScope = angular.element(document.querySelector("#myId")).isolateScope();

By implementing this method, you should now have the ability to transmit data through newScope.

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