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

It's a pretty useful functionality, for example here is a Node.js code snippet to test the set up of a 3 second timing function.

const waitTime = 3000;
console.log(`setting a ${waitTime/1000} second delay`);

Explanation

1. Declare wait time as 3000
2. Using the backtick you can embed the result of the calculation of 'wait time' divided by 1000 in the same line with your chosen text.
3. Further calling a timer function using the 'waitTime' constant will result in a 3 second delay, as calculated in the console.log argument.