Ace the Rust Interview

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intermediate · order 58

impl Trait return vs generic param

trait-impl-01Related book chapters: 10 (optional — this page is complete on its own)impl-Trait

Slug: trait-impl-01 · Paired reading: Chapter 10

Prompt

fn odds(nums: &[i32]) -> impl Iterator<Item = i32> + '_ — iterate odd values as owned i32s. impl Trait in return position hides the concrete iterator type from the caller.