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main.js — Intermediate JavaScript · Lesson 1.3

1// Turn each price into a "$X" label
2const prices = [20, 50, 100]
3 
4const priceLabels = prices.map(
5  (p) => `$${p}`
6)
7 
8console.log(priceLabels)

Output

✓ Test 1: returns an array

✓ Test 2: strings start with $

✓ Test 3: preserves order

[ '$20', '$50', '$100' ]

+20 XP · Lesson complete 🎉

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