Web Reference: 💡 In this video, I’ll show you how to build a JavaScript function to mask email addresses, step-by-step — part of a FreeCodeCamp full-stack challenge! In this lab, you will mask the username part of an email address with asterisks. Masking is a term used to hide or replace sensitive information with asterisks or other characters. Aug 1, 2025 · JavaScript freecodecamp.org tutorial completed August 1st, 2025. This JavaScript function masks the username portion of an email address for privacy. It retains the first and last character of the username and replaces all characters in between with asterisks (*).
YouTube Excerpt: In this video, I'll show you how to build a
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