Usage of the backtick character (`) in JavaScript

Question

In JavaScript, a backtick^† seems to work the same as a single quote. For instance, I can use a backtick to define a string like this:

var s         


        

Answer 1

The good part is we can make basic maths directly:

let nuts = 7

more.innerHTML = `

You collected ${nuts} nuts so far!



Double it, get ${nuts + nuts} nuts!!

`

It became really useful in a factory function:

function nuts(it){
  return `
    You have ${it} nuts! 

    Cosinus of your nuts: ${Math.cos(it)} 

    Triple nuts: ${3 * it} 

    Your nuts encoded in BASE64:
 ${btoa(it)}
  `
}

nut.oninput = (function(){
  out.innerHTML = nuts(nut.value)
})

NUTS CALCULATOR