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JavaScript JavaScript Array Iteration Methods Array Manipulation Transform Array Items with map()

Posted by Rachel Heneault
Rachel Heneault
12,401 Points

Different way of doing things

I always end up with different code than the instructor. This time I used toLocalString to convert the currency, It was great seeing how much easier it was when he just add the dollar sign an it converted it to money.

const price = prices.map(item => item.toLocaleString('en-US',{style:'currency',currency:'USD'})); console.log(price);

2 Answers

Joel Kraft
STAFF
Joel Kraft
Treehouse Guest Teacher
Joel Kraft
Joel Kraft
Treehouse Guest Teacher

Rachel Heneault,

Awesome solution! Actually, while the solution shown in the video was a little quicker to type, your solution is much more robust, and better for production code. Relying on toLocaleString rather than writing your own currency converting logic actually saves time and is less brittle in the long run. If you ever wanted to change the currency to euro, for example, you can just alter the currency parameter. Better yet, you could let your website user alter the currency by connecting that property to a form select element, for example.

Anyway, having a different way of doing things is great. Solving problems takes creative thought, which is what people mean when they talk about "thinking outside the box". In this case, it actually meant you wound up with better code! :)

Rachel Heneault
Rachel Heneault
12,401 Points
Rachel Heneault
Rachel Heneault
12,401 Points

Thanks Joel! You guys are great and I appreciate all that you do! :)