Markdown formatted notes with example solidity code for the Secureum security bootcamp, slot 2, topic: solidity-101

1. Solidity 101

Soldity is a high-level language for implementing smart contracts on Ethereum and other EVM blockchains. It was founded in 2014 by Gavin Wood and developed by Christian Reitwiessner, Alex Beregszazi, and others

Hello World in Solidity

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.3;

contract HelloWorld {
    string public greet = "Hello World!";
}

2. Solidity influences

Solidity was influenced by:

• C++ (OOP & Syntax)
• Python (modifiers, multiple inheritance, C3 linearization, & super keywords)
• JavaScript (function level scoping & var keyword)

Javascript influences have been reduced since v0.4.0

Solidity is the most widely used smart contract language, thus it is critical for understanding contract security.

3. General features

Solidity is:

• A "curly bracket" language: curly brackets {} are used to group statements within a scoping
• object oriented (supports inheritance, libraries, and user-defined types)
• statically typed

Sub-Chapters

1. Precontract Elements
2. Contract Elements
3. Typing
4. Exceptions
5. Style