Js: `${...arr}`

Question

Where is the error in this quiz?

var arr = [2,3,4];
var lit = `${...arr}`;
console.log(lit[0];

Answer 1

https://code.sololearn.com/Wma3zSx6o1i6/?ref=app
You just need to use the array destructuring syntax: var lit = [...arr];

Answer 2

Ali Abdelhady
Thanks! With a minor modification of your example, it works:

var arr = [1, 2, 3, 4];
var lit = [...arr];
console.log(lit[0]);

Answer 3

var arr = [2,3,4];
var lit = `${[...arr]}`;
console.log(lit[0]);

Use [] inside ${} so that lit variable makes a copy of arr variable

Answer 4

Prof. Dr. Zoltán Vass well it does work as well, by using the same syntax inside the {}: `${[...arr]}`

https://code.sololearn.com/Wma3zSx6o1i6/?ref=app

Answer 5

Mirielle
The error is in this line:

var lit = `${...arr}`;

I still don’t understand why. Perhaps destructuring can’t be used in string literals?