Creating sophisticated TypeScript AngularJS directive

Recently, I came across a directive for selecting objects from checkboxes which can be found at this link:

The issue I'm facing is that we are using TypeScript and I am unsure of how to implement the directive in TypeScript.

From what I understand, the basic structure should resemble something like this:

module myModule {
    'use strict';
    export function checklistModel(): ng.IDirective {
        return {...};
   };
};

My main challenge lies in injecting the $parse and $compile services. I attempted to include the code from the directive in the link but I am unsure about correctly configuring the directive.

If anyone could provide guidance on how to inject services and where to place specific parts of the given code within the link or compile sections, it would be greatly appreciated.

Answer №1

When it comes to TypeScript and dependency injection, there is no specific issue. All you have to do is define the dependencies that need to be injected as parameters of the checklistModel. To ensure that these dependencies can still be resolved after minifying the JavaScript files, you can also specify them using the $inject property (this method works in regular JavaScript too):

module myModule {
    'use strict';

    checklistModel.$inject = ['$parse', '$compile'];

    export function checklistModel($parse, $compile): ng.IDirective {
        return {
            link: function() { ... }
        };
    };

    angular.module('myModule').directive('checklistModel', checklistModel);
};

Everything else follows standard Angular practices. Additionally, the IDirective type will guide you on what the return value should look like.

I trust this explanation proves helpful.

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