how to add a new line in template literal javascript code example

Example 1: javascript template literals

//Must use backticks, `, in order to work.

let a = 5;
let b = 10;
console.log(`Fifteen is ${a + b} and
not ${2 * a + b}.`);

//Output:
//Fifteen is 15 and not 20.

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}`      );