I was going through elixirschool.com and I am stuck to understand what the author means by specifically this kind of pattern matching. The other kinds I get it, but this one doesn’t make sense. Functions and Pattern Matching Behind the scenes, functions are pattern-matching the arguments that they…

No, that match will fail as soon as you pass something into the function that is not a map, or if it is a map and does not have a key :name. iex(1)> defmodule Greeter1 do ...(1)> def hello(%{name: person_name}) do ...(1)> IO.puts "Hello, " <> person_name ...(1)> end ...(1)> end {:module, Gr…

That’s the compiled module byte code. You need to call Greeter1.hello(%{name: "something"}) to actually invoke the function.

Basically its the binary representation of the compiled module, you can ignore it when you see it in IEx.

Ok, but I do not see any pattern matching here. We just send an argument “something” and it returns “Hello, something”. Where is the pattern matching? Maybe this term is a bit over used?