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Solidity Data Locations - Storage, Memory and Calldata

- storage: variable is a state variable (store on blockchain)
- memory: variable is in memory and it exists while a function is being called
- calldata: special data location that contains function arguments

Accessing calldata is more gas-efficient compared to storage operations. Since calldata is read-only and does not involve modifying the blockchain state, reading from calldata typically incurs lower gas costs
40 $DEGEN