Functions

Functions in Elixirscript are transpiled into pattern matching functions. Let's take our example from Chapter 2.

defmodule App do

  def hello() do
    "Hello, World"
  end

  def hello(name) do
    "Hello, #{name}"
  end

end

Becomes

const hello = Patterns.defmatch(
  Patterns.clause([], function(){ return "Hello, World" }),
  Patterns.clause([Patterns.variable()], function(name){ return "Hello, " + name })
  );


export default {
  hello
}

Patterns.defmatch is the underlying JavaScript function that converts the above function heads into a JavaScript function that can be called.

You will notice that our function, hello is being exported. All def functions defined are exported while defp functions are not.