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.

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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:

1. Chrome or Firefox browser.

2. An Internet connection

3. About 30 Minutes of your precious time ⌛

Get Started

💪 💪 💪 Let's get started!