Exploring the possibilities of utilizing JavaScript within TypeScript

My dynamic javascript object holds all the resources (translation strings) for my app. Here's how it is structured:

var ResourceManager = (function () {
    function ResourceManager() {
        var currentLanguage = $('#activeLanguage').html();
        this.resources = {
            get Aanmelden() {
                switch (currentLanguage) {
                case "en-GB":
                    return "Register";
                case "nl-NL":
                    return "Aanmelden";
                default:
                    return "Aanmelden";
                }
            },
            get AlgemeenOpslaan() {
                switch (currentLanguage) {
                    case "en-GB":
                        return "Save";
                    case "nl-NL":
                        return "Opslaan";
                    default:
                        return "Opslaan";
                }
            }
        };

    }
    return ResourceManager;
}());

The interesting part is that I can use intellisense to access my translations, similar to MVC functionality. Is there a way to achieve the same feature when using TypeScript? The challenge lies in being able to do:

declare class ResourceManager {

}

However, this does not offer intellisense for the methods of this class. I prefer using javascript over typescript because dynamically building a typescript file doesn't automatically compile it into the desired javascript file for the client.

Does anyone have suggestions on either utilizing a typescript resource file instead of javascript or enabling intellisense for the javascript object in other typescript files?

Answer №1

Using TypeScript for Resource Management

I'm considering implementing this code to handle resource management. What are your thoughts?

class ResourceManager {
    private currentLanguage: string;
    
    constructor() {
        this.currentLanguage = $('#activeLanguage').html();
    }
    
    public resources = {
        get Aanmelden() {
            switch (this.currentLanguage) {
                case "en-GB":
                    return "Register";
                case "nl-NL":
                default:
                    return "Aanmelden";
            }
        },
        get AlgemeenOpslaan() {
            switch (this.currentLanguage) {
                case "en-GB":
                    return "Save";
                case "nl-NL":
                default:
                    return "Opslaan";
            }
        }
    }
}

If you're interested, you can find more information on calling the TypeScript compiler programmatically.

Declaring Resources Interface

interface Resources {
    readonly Aanmelden: string
    readonly AlgemeenOpslaan: string
}

declare class ResourceManager {
    resources: Resources
}

To keep things organized, consider separating the declaration and data into different files:

  1. Create a TypeScript definition file for the interface Resources;
  2. Store the data in JSON format;
  3. Write a Javascript function (possibly with TypeScript's help) that dynamically populates the resources properties using Object.defineProperties, based on the JSON data.

This approach can streamline the build process and potentially allow you to publish the work as an npm package.

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