Lab: Mappings and Structs¶
In this lab you are going learn how mappings work.
Mappings are a little bit like arrays or hash maps. You can store key/value pairs.
What You Know At The End Of The Lab¶
🔄 You'll know how mappings work.
⭐ You'll learn a new way to create account-white lists.
Prerequisites - You need:¶
Chrome or Firefox browser.
An Internet connection
About 30 Minutes of your precious time ⌛
💪 💪 💪 Let's get started!