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🚀 Master Smart Contract Development in 30 Days! Welcome to the 30 Days of Solidity: The Ultimate Guide to Smart Contract Development (2025) playlist! This comprehensive Solidity tutorial series takes you from zero to hero in smart contract programming, building robust, secure decentralized applications (dApps) on the Ethereum blockchain. Each day, we tackle a new concept or build a practical smart contract, ensuring a hands-on learning experience. What you'll learn: * Solidity Basics: Variables, data types, functions, modifiers, control structures. * Advanced Smart Contracts: DeFi, NFTs, DAOs, Oracles. * Real-World Projects: MiniDex, StableCoin, YieldFarming, NFT Marketplace, Lending Pool, and more! * Ethereum Blockchain Development: Deploy and interact with smart contracts. * Best Practices: Secure coding patterns and common pitfalls. 📚 Complete Video Playlist with Direct Links: • Day 1: https://youtu.be/7AoTBeDrFgk • Day 2: https://youtu.be/jMxpX_OiW4g • Day 3: https://youtu.be/uBre8NtNKxY • Day 4: https://youtu.be/OI9x4G6Tu-k • Day 5: https://youtu.be/MCz9RrQfpj8 • Day 6: https://youtu.be/sxWujOuZRuw • Day 7: https://youtu.be/J0XWaNMFN-c • Day 8: https://youtu.be/zidzGRim__I • Day 9: https://youtu.be/AUA6yZBabJ0 • Day 10: https://youtu.be/QgtW7mwRPC0 • Day 11: https://youtu.be/irc--Pts8zw • Day 12: https://youtu.be/59b60LEo1Lo • Day 13: https://youtu.be/P8qmIlSLOLA • Day 14: https://youtu.be/cqZ9gBj5S-A • Day 14: Part 2: https://youtu.be/vkQkVyF_kJo • Day 15: https://youtu.be/AeVctT0E61s • Day 16: https://youtu.be/3j-SrLl412o • Day 17: https://youtu.be/4AXyPg4GwHU • Day 18: https://youtu.be/FnTUo_WWSTg • Day 19: https://youtu.be/delfyPTbHY8 • Day 20: https://youtu.be/Q9oEHYQGQI4 • Day 21: https://youtu.be/DdvrGf5Rg4Q • Day 22: https://youtu.be/IciiaXNIscg • Day 23: https://youtu.be/lnAFa73apAE • Day 24: https://youtu.be/Ar6AR6I-j-s • Day 25: https://youtu.be/xcaz8XQmtE8 • Day 26: https://youtu.be/kNIzxWTi89g • Day 27: https://youtu.be/Noly0ZUzfeE • Day 28: https://youtu.be/SoWNluca-Bk • Day 29: https://youtu.be/oyitivoEyEg • Day 30: https://youtu.be/mcMp_X1pH4M Today’s project is all about splitting responsibilities in smart contracts. Instead of cramming every math function into one mega-contract, we’re building two smart contracts that work together: 1️⃣ Calculator.sol – Handles the basics: add, subtract, multiply, divide. 2️⃣ ScientificCalculator.sol – Handles the cool stuff: powers and square roots. Then, we connect them like grown-up contracts should—one talks to the other through both high-level calls and low-level calls. 💡 Here’s what you’ll learn: 🔢 How to build a modular calculator in Solidity 📦 Why it's better to split logic across contracts (and how to do it) 📡 How to call functions from one contract inside another 🧪 High-level calls vs low-level .call() – when and why to use each 🔐 Using access control with onlyOwner to link external contracts 🎯 Newton’s Method for estimating square roots (yes, we got a little mathy) 🧙 Address casting + ABI encoding – the real Web3 wizardry Whether you're building a DeFi protocol or just tired of copy-pasting math logic, this one’s packed with real dev patterns you’ll use again and again. 👨💻 Full Code: https://builder-hub.notion.site/Smart-Calculator-1d05720a23ef803a86e3e16d534b51ab?pvs=4 📚 Part of the 30 Days of Solidity Challenge Build one smart contract a day, from beginner to dApp wizard: https://www.web3compass.xyz/challenge-calendar 🔗 Follow Web3 Compass for more Solidity gold: 🐦 X (Twitter): https://x.com/the_web3compass 💼 LinkedIn: https://www.linkedin.com/company/the-web3compass 💬 Telegram: https://t.me/+Bmec234RB3M3YTll
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