Methods for invoking a JavaScript function from TypeScript within an Angular2 application

Hey there! I'm looking to execute a regular JavaScript function from a TypeScript file.

Let's say I have a JavaScript file called test.js and it's been imported into the index.html of my application.

Now, I want to invoke the test() function from the app.component.ts file.

function test(){

console.log('test');

}

Answer №1

It's effective in my case

(window as any).executeMyJSFunction()

Answer №2

When it comes to JavaScript, there isn't a default way to achieve a certain function. However, you can customize your JS file by following this example.

className/test.js

class className {
   function test() {
     console.log('test');
}
exports.default = className;

To define a Type, you can create the following definition.

className/index.d.ts

export default class className {
   test(): void;
}

Now, you can incorporate your customized JavaScript into app.component.ts.

import className from "./className";

var t = new className();
t.test();

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