Converting Javascript tools into Typescript

Question

Converting Javascript tools into Typescript

I'm currently in the process of migrating my Ionic1 project to Ionic2, and it's been quite an interesting journey so far! One challenge that I'm facing is how to transfer a lengthy list of utility functions written in JavaScript, like CmToFeet, InchesToCM, and FarenheitToCelsius, to the Ionic2 project. I'm unsure about the proper way to include these files in the project and ensure they are incorporated into the build process. Can I simply add them to the index.html file and have them automatically accessible? Or do I need to take additional steps? Any advice would be greatly appreciated!

javascript angular typescript ionic2 ionic3

Answer 1

Answer №1

If you want to handle it like just another asset, consider creating a designated folder within your project directory called src/assets/scripts. Place all related JavaScript files in this folder and then reference them in your index.html file using the script tag:

<script src="assets/scripts/jsFileName.js"></script>

Previously, if you accessed functions like CmToFeet.methodName(), now you'll need to define the CmToFeet variable to avoid TypeScript errors.

import {...} from '...';

declare var CmToFeet: any; // <- Ensure this declaration

@Component({
    selector:'my-page',
    templateUrl: 'my-page.html',
})
export class MyPage {

   // ...

}

Note that by setting the variable type as any, auto-completion features may not function properly.

Answer 2

If you want to handle it like just another asset, consider creating a designated folder within your project directory called src/assets/scripts. Place all related JavaScript files in this folder and then reference them in your index.html file using the script tag:

<script src="assets/scripts/jsFileName.js"></script>

Previously, if you accessed functions like CmToFeet.methodName(), now you'll need to define the CmToFeet variable to avoid TypeScript errors.

import {...} from '...';

declare var CmToFeet: any; // <- Ensure this declaration

@Component({
    selector:'my-page',
    templateUrl: 'my-page.html',
})
export class MyPage {

   // ...

}

Note that by setting the variable type as any, auto-completion features may not function properly.

Converting Javascript tools into Typescript

Answer №1

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