how to use javascript file(function) in typescript

Question

how to use JavaScript file(function) in typescript.

//abc.js
function Abc(){
alert();
}

//test.ts now how to use Abc() function in typescript

Possible duplicate of How use an external non-typescript library from typescript without .d.ts? — Rob
– Rob ♦, Commented May 16, 2017 at 6:26

andrean · Accepted Answer · 2017-05-16 06:56:50Z

2

A very simple solution:

declare var Abc: any;
Abc();

answered May 16, 2017 at 6:56

andrean

10713 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Using this defeats the purpose of using typescript. As soon as you use any, all bets are off an you have no type safety.

Aurélien Gasser · Accepted Answer · 2017-05-16 06:30:28Z

1

A simple solution:

lib.ts

export default class Lib {
    public Abc() {
        alert();
    }
}

main.ts

import Lib from "./lib"

var lib = new Lib();
lib.Abc();

answered May 16, 2017 at 6:30

Aurélien Gasser

3,1201 gold badge23 silver badges25 bronze badges

that is not solution. where is .js file my question is how to import js file in .ts file and how to use .js file function.