iterator_chain.rs

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option_result.rs

error_handling.rs

pattern_match.rs

iterator_chain.rs

lifetime_generic.rs

trait_impl.rs

closure_move.rs

async_await.rs

macro_rules.rs

ref_deref.rs

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iterator_chain.rs

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let sum: i32 = numbers.iter()↵

.filter(|&&x| x > 0)↵

.map(|&x| x * 2)↵

.sum();

0WPM•0%•0:00•0/84(0%)|Ln 1, Col 1

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関連する練習問題

option_result.rs error_handling.rs pattern_match.rs lifetime_generic.rs trait_impl.rs closure_move.rs