Creating Anonymous Functions
Explore how to define and use anonymous functions in Elixir, including single and multiple arguments, string interpolation, and best practices for function creation to write reusable code.
Introducing functions
We can think of functions as subprograms within our program; they receive an input, do some computation, and then return an output. The function body is where we write expressions to do a computation. The last expression value in the function body is the function’s output. Functions are useful for reusing expressions. Let’s start with a simple example in which we’ll build messages to say hello to Ana, John, and the world. But first, try typing this in the IEx at the end of this lesson:
iex> "Hello, Mary!"
#Output -> "Hello, Mary!"
iex>