The Complete Solidity Course - Zero to Advanced for Blockchain and Smart Contracts - Solution - Bid Function - Auction

The video tutorial explains how to create a bid function for an auction system. It covers the necessary conditions for bidding, such as checking if the auction is over and ensuring the bid is higher than the current highest bid. The tutorial also discusses error handling, the importance of using a withdrawal pattern to prevent vulnerabilities, and how to manage pending returns. Finally, it demonstrates how to finalize the bid function and emit events when the highest bid is increased.

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