Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →

menu_book Course Curriculum (Gleam) expand_more

Language Basics

let bindings String interpolation Integers and floats Tuples Lists Booleans Case expressions Pipe operator

Types & Data

Custom types Record constructors Pattern matching Option values Result values Type aliases Generic types Opaque types

Functions & Modules

Named functions Anonymous functions Higher-order functions Recursion Module imports Qualified calls Public functions Function capture

Practical Gleam

List.map List.filter List.fold String.split Result.try Error propagation Bit arrays JavaScript target externals

Gleam / Language Basics

Case expressions

Learn Case expressions in Gleam with a focused explanation, a topic-specific example, and a mastery check.

12 min read • Beginner

gleam-007.gleam

gleam

pub fn main() {
  let code = 404
  let label = case code { 200 -> "ok" 404 -> "missing" _ -> "other" }
  io.println(label)
}

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Case expressions Mastery Check →