teddyjfpender Cairo If Let and While Let
Overview
Use if let and while let for concise pattern matching when only one pattern matters.
Quick Use
- Read
references/if-let-while-let.mdbefore answering. - Show the equivalent
matchwhen explaining tradeoffs. - Mention that
if letcan include anelsebranch.
Response Checklist
- Use
if let pattern = expr { ... }for single-variant matches. - Use
while let pattern = expr { ... }to loop while a pattern matches. - Note that these forms are not exhaustive and can hide missing cases.
Example Requests
- "How do I unwrap Option::Some with if let?"
- "How do I loop while pop_front returns Some?"
- "When should I prefer match instead of if let?"