How to import ex.js file to ex.component.ts?

Question

 import { jsFile } from '../about/ex1.js';
 constructor() {
  jsFile(); // Method
  }

jsFile position img

I have error in console error console img

Answer 1

 -- In ex1.js --
 export function isFile() {
   // Code
 }

 -- In AboutComponent --
 import { jsFile } from '../about/ex1.js';

 constructor() {
   jsFile(); // Method
 }

Try exporting isFile .