About Journal Uses

← Back to Track

Region: Switch to ID

Advanced Exercism • objective-c

Phone Number

Challenge Overview

Clean up user-entered phone numbers so that they can be sent SMS messages.

Visit the phone-number exercise on Exercism to read the full instructions and download the exercise files.

Source: Exercism objective-c/phone-number

License: MIT Original Source ↗

RH.

Architecting scalable systems and fostering engineering excellence through technical education.

Connect

GitHub LinkedIn

Explore

About Journal Uses Changelog Support Us

Legal

© 2026 Rachmat Hidayat. Built for the web.