solidity
Solidity
Solidity is the primary language for the Ethereum Virtual Machine (EVM). v0.8.28 (2025) focuses on transient storage (tstore) and gas optimization via IR.
When to Use
- Ethereum/L2s: Developing for Optimism, Arbitrum, Base.
- DeFi: Writing logic for tokens, AMMs, and lending.
- NFTs: ERC-721 and ERC-1155 contracts.
Core Concepts
Gas
Every operation costs ETH. Optimization is critical.
Modifiers
Reusable checks. modifier onlyOwner { ... }.
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