interpolation string javascript with new line code example

Example 1: js string concatenation es6

let str=`JavaScript first appeared ${a+b} years ago. Wow!`;

Example 2: how to add a new line in template literal javascript

to add a new line forget \n 
... simply use a new line in the definition
let a = "a", b="b" 
console.log(
`${a}
${b}`      );