John Hartquist
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John Hartquist
@johnhartquist.com
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rust // python // machine learning // audio
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In today's #adventofcode solution using #rustlang, I used a "let-else" statement to
- conditionally declare a variable
- return early
- avoid indenting the remaining checks (as in the other examples)

I prefer returning early and using the implicit return for the "happy path". What do you think?
fn check_let_else(value: Option<u8>) -> bool { let Some(n) = value else { return false; }; // additional checks on n... todo!() } fn check_if_let(value: Option<u8>) -> bool { if let Some(n) = value { // additional checks on n... todo!() } else { false } } fn check_match(value: Option<u8>) -> bool { match value { Some(n) => { // additional checks on n... todo!() } None => false, } }
December 4, 2024 at 11:24 PM