5 Gas Optimization Patterns I Learned Building NFT Protocols.
After deploying 10+ NFT contracts, here are the patterns that actually save gas: 🧵

4/8 Use unchecked blocks for safe math.
Example: incrementing tokenId in mint function Saves ~35 gas per mint:

5/8 Batch mint operations using ERC721A.
Regular mint (5 NFTs): ~874,542 gas
ERC721A mint (5 NFTs): ~254,763 gas

7/8 Use custom errors instead of require strings.
Saves ~50 gas per check!

8/8 These optimizations saved our users over 5 ETH in gas fees last year.
Want more gas optimization threads? Drop a 🔥 below!
#Web3Dev #Solidity #NFTs

1/8 First, the obvious but crucial: Use packed storage Before: 813,562 gas ⛽️
After: 793,147 gas ⛽️ 
Code comparison 👇