First Flight #1: PasswordStore

Summary

Gas optimization tips to reduce gas units.

Impact

Gas Optimization will reduce gas usage in TXs.

Recommendations

1. Declaring s_owner as immutable will reduce the gas costs as it wont store on the storage.

2. Use bytes32 in place of string s_password if the password of size is less than 32 bytes. As bytes32 is more gas efficient. If the password is larger than 32 bytes keep the type of s_password as string.