Ethereum

Gas-Saving Tip: Use 'unchecked' in Solidity for Leaner Contracts 💡

In #Solidity, every operation is safe by default, including arithmetic operations from the 0.8th version👇

Web3 builder, React.js, Solidity, Codeigniter-PHP, Tech educator at CodeCrunchTechSchool, bookworm.

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This means they automatically check for errors like overflows. But with the unchecked keyword, you can bypass these checks when you're certain they're not needed, and save gas in the  process.

Take this attached snippet for example 👇

By using unchecked, we're telling Solidity that we know myNumber won't overflow, and it can skip the extra gas it would normally use to check. This tiny change shaves off gas with every call, optimizing our
contract for cheaper transactions

⚠️ Caution: Only use unchecked when you're sure there won't be 
overflows, as it could lead to vulnerabilities!
 #SmartContracts #GasOptimization