Functional

Hello World in Gleam

Every programming journey starts with Hello World. Let’s write our first Gleam program.

The Code

Create a file named hello.gleam:

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import gleam/io

pub fn main() {
  io.println( …

Hello World in Roc

Every programming journey starts with Hello World. Let’s write our first Roc program.

The Code

Create a file named main.roc:

app [main!] { cli: platform …

Hello World in Scheme

Every programming journey starts with Hello World. Let’s write our first Scheme program and experience one of the most elegant and influential programming languages ever created.

The Code

Create …

Hello World in F#

Every programming journey starts with Hello World. Let’s write our first F# program and see how clean and expressive functional programming can be.

The Code

Create a file named hello.fsx:

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Hello World in Elixir

Every programming journey starts with Hello World. Let’s write our first Elixir program.

The Code

Create a file named hello.exs:

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IO.puts("Hello, World!")

That’s it! One …