🔮 Output PredictionSO Solidity Medium⚡+20 XP
Mapping Default
What does a mapping return for a key that was never set?
Solidity
mapping(address => uint) public balances; // balances[unknownAddr] = ?
What does a mapping return for a key that was never set?
mapping(address => uint) public balances; // balances[unknownAddr] = ?