🚡 Gond 🚠

Multi-branch conditional expression similar to if-else if-else or cond for Gleam.

Think of a gondola lift ride, where you can hop off at any station.

Installation

gleam add gond@2

Examples

import gleam/int
import gond.{cond, fact, run, when, yield}

fn example() {
  cond(
    branches: [
      when(fn() { int.random(3) == 1 }) |> run(fn() { "Heads!" }),
      fact(int.random(3) == 2) |> run(fn() { "Tails!" }),
      when(fn() { True }) |> yield("This always occurs!"),
      fact(False) |> yield("This is never the fact!"),
    ],
    default: fn() { "Lost the coin?" },
  )
}

pub fn main() {
  echo example()
}

Run usage examples

git clone https://github.com/inoas/gleam-gond.git
bin/run-examples

Further documentation can be found at https://hexdocs.pm/gond.

Development

gleam run   # Run the project
gleam test  # Run the tests

Inspirations

• Clojure's cond macro.
• Elixir's cond macro.

Tags

• elseif
• elsif
• if statement