Yevgen Polyak evhen14

Applied Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

	#!/bin/bash

	# Use whichever region you're working in
	export AWS_DEFAULT_REGION=eu-west-1

	# Make ec2-user's home dir the install to make it easier to navigate when subsequently ssh-ing in to instances
	su ec2-user -
	cd /home/ec2-user

	echo Working dir is `pwd`