When I started the exercise, I did not expect to learn anything new, given that I have used JS template literals quite a bit, but was surprised to learn about toFixed to display a fixed set of decimal points.
And I really appreciate how succinct yet clear the article was and how well-thought-out the exercises were - the shortest yet the most demanding intro to template strings I have come across. Kudos to the author!
I wish there is a some upvote/commenting facility under each article and exercise so that I can upvote and post these comments right there in the context of the exercise - a feature request 
probably
