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Gleam / Functions & Modules

Higher-order functions

Learn Higher-order functions in Gleam with a focused explanation, a topic-specific example, and a mastery check.

12 min read • Intermediate

gleam-019.gleam

gleam

pub fn apply_twice(f, x) { f(f(x)) }
pub fn main() { io.debug(apply_twice(fn(x) { x + 3 }, 1)) }

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Higher-order functions Mastery Check →

Anonymous functions