Rust

Propagating With ? in Rust

RustError HandlingQuestion Markadvanced

? returns the error early on failure and unwraps the value on success, collapsing a match into a single character.

expected output

Ok(42)
true

Why practise typing this

Typing error handling code builds muscle memory for the symbols and indentation Rust uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

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