Learn Solidity — Complete Beginner to Expert Guide
From zero to blockchain developer in 3 months. Progressive roadmap, 1000+ interactive exercises, real projects.
Learning Roadmap in 3 Phases
Phase 1: Beginner
4-6 weeks · 300+ exercises
- Basic syntax and data types
- Functions, modifiers, events
- Storage vs Memory vs Calldata
- Deploy your first smart contract
Phase 2: Intermediate
6-8 weeks · 400+ exercises
- ERC-20, ERC-721, ERC-1155 tokens
- Patterns: Factory, Proxy, Diamond
- Testing with Foundry/Hardhat
- Project: Clone Uniswap V2
Phase 3: Expert
8-12 weeks · 300+ exercises
- Assembly Yul and gas optimization
- Advanced security audits
- Complex DeFi architecture
- Project: Full DeFi protocol
Example: Your First Smart Contract
A simple contract that stores and retrieves a number. You'll deploy this in your first hour on Solingo.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;
contract SimpleStorage {
uint256 private storedValue;
event ValueUpdated(uint256 indexed oldValue, uint256 indexed newValue);
function setValue(uint256 _value) public {
uint256 oldValue = storedValue;
storedValue = _value;
emit ValueUpdated(oldValue, _value);
}
function getValue() public view returns (uint256) {
return storedValue;
}
}Frequently Asked Questions
How long does it take to learn Solidity?
With consistent practice (1 hour/day), you'll master the basics in 4-6 weeks. Expert-level proficiency requires 3-6 months of intensive practice with real projects.
Do I need to know JavaScript to learn Solidity?
No, but it helps. Solidity has syntax similar to JavaScript/TypeScript. If you already know any programming language, you'll learn faster.
Is Solingo really free?
Yes. Access to the complete roadmap, 1000+ exercises, and basic courses is 100% free. Premium features (certification, guided DeFi projects) are optional.
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