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Error handling in Solidity

An error will undo all changes made to the state during a transaction.

- require is used to validate inputs and conditions before execution.
- revert is similar to require. See the code below for details.
- assert is used to check for code that should never be false.

By leveraging these error-handling mechanisms effectively, Solidity developers can write secure and robust smart contracts that handle errors gracefully and ensure the integrity of the Ethereum blockchain ecosystem
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