Solidity Mapping: Complete Guide to Key-Value Data Structures
What is a Mapping in Solidity? 🗺️ A mapping in Solidity is a powerful key-value data structure that functions like a hash table or dictionary in traditional programming languages. It’s the go-to solution for associating wallet addresses with balances and managing relationships between different data types on the blockchain. Mappings are essential building blocks in Solidity, particularly for storing and managing critical data such as user balances, permissions, and any other relationship between two types of data. ...