Problems with Korean conversion when converting ts -> js in typescript (especially when using 'template string')

While following the Gulp section on the TypeScript home page.

// File name: src/main.ts
function hello(compiler: string) {
    console.log(`Hello from ${compiler}`);
}
hello('TypeScript');

On the example code, there is a template string as shown above, and change this code as follows.

// File name: src/main.ts
function hello(compiler: string) {
    console.log ("Hi");
    console.log ("Hi 2");
    console.log(`Hello from ${compiler}`);
}
hello('TypeScript');

I ran gulp and saw ts -> js converted code...

// File name: dist/main.js
function hello(compiler) {
    console.log ("Hi");
    console.log ("Hi 2");
    console.log("\uC548\uB155 from " + compiler);
}
hello('TypeScript')

As shown in , only Korean in template string has been changed to Unicode.

Of course, the result of node dist/main.js is well printed in Korean, but... Is there a way to convert the Korean of the template string into the Korean like other Korean of the regular string?