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Gleam: A Beginner-Friendly Typed Functional Language Running on the BEAM

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Gleam is a functional programming language that runs on the Erlang virtual machine, the BEAM, and compiles to both Erlang and JavaScript, allowing use on servers and in browsers. Its design highlights include a strong type system that eliminates null values, readable syntax resembling Rust or Python, and built-in support for lightweight processes, fault tolerance, and hot code reloading. The article walks readers through a simple first program and notes that the language is used for web servers, APIs, and real-time systems, with the Lustre framework extending it to frontend work. It is aimed at Erlang and Elixir developers, functional programmers, and beginners, though the author cautions that its library ecosystem and job market are still small.

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