Rust Error Handling: When to Use panic! vs Result Explained - Full Crash Rust Tutorial for Beginners

By the end of this video, you will clearly understand when to use panic! and when to use Result in Rust. We start with a quick recap of the panic! macro and discuss scenarios where it is appropriate to use panic, such as in examples, prototypes, tests, edge cases, and situations where we know more than the Rust compiler. Then, we explore when to use the Result type, focusing on parsing inputs, handling rate-limiting HTTP requests, and creating custom error types. Finally, we summarize the key points. Related videos: https://youtu.be/PCjuO-Bv5FI?si=OEmchCsfcVt67rgV https://youtu.be/mgK5LezkHl8?si=Sjh5Kk6aL-t_lVi_ https://youtu.be/94iSHoKmPmY?si=txvL-tjUf6XIQ8fW https://youtu.be/sd1M_CLXl4I?si=sQqOuwfhAzRVE7HF https://youtu.be/2XwP1U0XL0E?si=uwOwstFSoscsaB9X https://youtu.be/NBFH3BnCIvU?si=slK_5vNhmY3OZXN2 0:00 To panic or not to panic - a quick recap 00:48 When to Use Panic 1:23 Panic for Examples 2:00 panic! for Prototypes 2:56 Panic in Tests 3:24 Panic for Edge Cases 4:00 Panic when we know more than the Rust compiler 5:16 When to use Result in Rust 6:13 Using Result when Parsing Inputs - Handling Parsing Errors 7:10 Use Result to handle rate-limiting HTTP 8:01 Custom Error Types 9:17 Summary - key points ALL THE LINKS HERE: https://francescociulla.com