JavaScript Challenge: Format a Phone Number 📱 | freeCodeCamp Daily Coding
In today’s freeCodeCamp Daily Coding Challenge, we’ll solve a classic string manipulation problem in JavaScript:
👉 Given a string of 10 digits, return it formatted as a phone number in the style:
+D (DDD) DDD-DDDD
You’ll learn:
How to use regex for input validation
How to slice strings to extract parts
How to build formatted strings with template literals
Why normalization (String(number).trim()) is important
This challenge is perfect for sharpening your JavaScript fundamentals and preparing for coding interviews. 🚀