I am Jean a passionate web3 dev, specialised in smart contracts and Solidity.
Author of the 📓 All About Solidity Book! + ✍🏼 All About Solidity article series
- 🔭 Currently working as: Smart Contract Team Lead at LUKSO.
- 🌱 Currently learning: Defi.
- 🤝🏻 Looking to collaborate on: any web3 protocol or project.
- 💬 Ask me anything about: smart contracts and Solidity! 🫡
- Building a POAP using the LSP8 Standard - Eth Denver 2024 Workshop.
- The Bytecode Episode #4 - Explaining the LSP6 Key Manager
- LUKSO LSP Recipes to build new protocols
- LUKSO Standard Proposal Workshops for BuildUP #2 Hackathon - Episode 1 | Episode 2
Note: below is my GitHub profile as a smart contract code in Solidity!
// SPDX-License-Identifier: YOLO pragma solidity ^0.8.x; // YOLO LICENSE // Version 1, July 10 2015 // THIS SOFTWARE LICENSE IS PROVIDED "ALL CAPS" SO THAT YOU KNOW IT IS SUPER // SERIOUS AND YOU DON'T MESS AROUND WITH COPYRIGHT LAW BECAUSE YOU WILL GET IN // TROUBLE HERE ARE SOME OTHER BUZZWORDS COMMONLY IN THESE THINGS WARRANTIES // LIABILITY CONTRACT TORT LIABLE CLAIMS RESTRICTION MERCHANTABILITY SUBJECT TO // THE FOLLOWING CONDITIONS: // 1. #yolo // 2. #swag // 3. #blazeit import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; /// @title GitHubProfile /// @dev A contract to store and manage your GitHub profile information. contract GitHubProfile is Ownable(0xC0Dec0dec0DeC0Dec0dEc0DEC0DEC0DEC0DEC0dE) { /// @dev Event emitted when the profile is created event ProfileCreated(string username, string url, string job, string[] skills); /// @dev Event emitted when the job is updated event JobChanged(string oldJob, string newJob); /// @dev Event emitted when a new skill is added event SkillAdded(string newSkill); struct Github { string username; string url; } Github private githubInfos; /// @dev Set as constant as assigned at birth (not planning to change it!) string public constant FIRST_NAME = "Jean"; /// @notice The current job title string public job; /// @notice A list of skills string[] public skills; /// @dev My approach to web3, Blockchain and Programming 🪂 string public constant motto = unicode"Keep Learning 📚, Keep BUIDLing! 🫡"; /// @dev Initializes the contract with default values for GitHub information, job title, and skills. constructor() { githubInfos.username = "CJ42"; githubInfos.url = "https://github.com/CJ42"; job = "Smart Contract Team Lead at LUKSO"; skills.push("Solidity"); skills.push("Smart Contracts"); skills.push("Blockchain"); skills.push("Web Development"); skills.push("React"); emit ProfileCreated(githubInfos.username, githubInfos.url, job, skills); } /// @notice Updates the job title /// @param newJob The new job title to set /// @dev Only the contract owner (CJ42.eth) can call this function function updateJob(string memory newJob) public onlyOwner { emit JobChanged(job, newJob); job = newJob; } /// @notice Adding a new skill `newSkill` to the list /// @param newSkill The new skill to add function addSkill(string memory newSkill) public onlyOwner { skills.push(newSkill); emit SkillAdded(newSkill); } /// @notice Retrieves the list of skills /// @dev We cant get back the full array from the `public` getter of the state variable. /// The `skills(uint256)` getter function can only get value at specific indexes. /// @return An array of strings representing the skills function getSkills() public view returns (string[] memory) { return skills; } /// @notice Retrieves the GitHub username and URL /// @return A tuple containing the GitHub username and URL function getGithubInfo() public view returns (string memory, string memory) { return (githubInfos.username, githubInfos.url); } }- All About Solidity
- Blockchain Academic References
- Bitcoin Core Alpha release - Deep Dive into the C++ source code.
- solidity-debugger.io - curated list of Solidity errors and warnings + their explanations and how to fix them.
- Decentralised Relayer Contracts - optimised forked version of any.sender working with Solidity 0.8.x
- Solidity Bytes Utils - Solidity library to manipulate bits and bytes.