Learn Solidity Handbook

This handbook intended to get you started on coding Solidity ASAP. It follows the Pareto Principle (aka the 80/20 rule) by focusing on the 20% of the info that will cover 80% of your needs.

Table of Contents

• Who is this handbook for?
• Essential prior knowledge
• What is Solidity?
• What is a smart contract?
• How to declare variables and functions in Solidity?
• Variable scope in Smart Contracts
• How visibility specifiers work
• What are constructors?
• Interfaces and abstract contracts
• Smart contract example #2
• What is contract state?
• State mutability keywords (modifiers)
• Data locations – storage, memory, and stack
• How typing works
• Solidity data types
• How to declare and initialize arrays in Solidity
• What are function modifiers?
• Error handling in Solidity - require, assert, revert
• Inheritance in Solidity
• Inheritance with constructor parameters
• Type conversion and type casting in Solidity
• How to work with floating point numbers in Solidity
• Hashing, ABI encoding and decoding
• How to call contracts and use the fallback function
• How to send and receive Ether
• Solidity libraries
• Events and logs in Solidity
• Time logic in Solidity
• Conclusion and further resources