output

Compile file:///home/lucacasonato/Downloads/test.ts
error TS2345: Argument of type '1' is not assignable to parameter of type 'string'.

► file:///home/lucacasonato/Downloads/test2.ts:5:7

5 hello(1);

test.ts

import "./test2.ts";

test2.ts

function hello(msg: string) {
  console.log(msg);
}

hello(1);