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I found some code snippets using the 'hex' prefix before a string in a bytes variable. I can't seem to find its description in the solidity docs.

bytes memory bytesVar = "0x01";
bytes memory bytesVarWithHex = hex"01";

When I log the results they return 0x30783031 and 0x01, respectively. What exactly is it doing for the variables being stored?

1 Answer 1

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bytes memory bytesVar = "0x01"; is converting the literal string "0x01" to UTF-8 and storing that, and bytes memory bytesVarWithHex = hex"01"; is storing the hex number 1

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