Lesson 2: Welcome to Remix! Simple Storage

⌨️ (02:01:16) Lesson 2: Welcome to Remix! Simple Storage

💻 Code: https://github.com/PatrickAlphaC/simple-storage-fcc

Introduction

• Remix
• Solidity Documentation

Setting Up Your First Contract

• Versioning
• Take notes in your code!
• What is a software license
• SPDX License
• Compiling
• Contract Declaration

Basic Solidity: Types

• Types & Declaring Variables
  • uint256, int256, bool, string, address, bytes32
  • Solidity Types
  • Bits and Bytes
• Default Initializations
• Comments

Basic Solidity: Functions

• Functions
• Deploying a Contract
  • Smart Contracts have addresses just like our wallets
• Calling a public state-changing Function
• Visibility
• Gas III | An example
• Scope
• View & Pure Functions

Basic Solidity: Arrays & Structs

• Structs
• Intro to Storage
• Arrays
• Dynamic & Fixed Sized
• push array function

Basic Solidity: Compiler Errors and Warnings

• Yellow: Warnings are Ok
• Red: Errors are not Ok

Memory, Storage, Calldata (Intro)

• 6 Places you can store and access data
  • calldata
  • memory
  • storage
  • code
  • logs
  • stack

Mappings

• Mappings

Deploying your First Contract

• A testnet or mainnet
• Connecting Metamask
• Find a faucet here
• See the faucets at the top of this readme!
• Interacting with Deployed Contracts

The EVM & A Recap of Lesson 2

• The EVM