Question about variables concatenation

JavaScript
1

what is the difference between

  console.log("hello  $(nom)");

and

  console.log("hello " + nom);
2

The first isn’t used correctly.

It should be using ${} which is interpolation used in template literals. But you do not use it like that. The way you are using it it will just log hello $(nom).

Note the backticks used.

const name = 'John'
console.log(`Hello ${name}`) // Hello John
3

HI @bilalbajou !

Here are the two FCC lessons that talk about Template Literals and Concatenating Strings with the Plus operator if you want to review them.

4

There is only few difference. It seems that there is no difference in term of performance. But the template literal is easier to read because there isn’t all the " + … + ".
Moreover with the concatenation, you have to escape thé " or the ', which are more used than the backtick `

5

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