#1 Solidity Tutorial & Ethereum Blockchain Programming Course | CryptoZombies
cryptozombies.io/en/lesson/3/chapter/10
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This function will only need to read data from the blockchain, so we can make it a view function
view functions don't cost any gas when they're called externally by a user.
that it only needs to query your local Ethereum node to run the function, and it doesn't actually have to create a transaction on the blockchain
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