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Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.
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
| import java.io.IOException; | |
| import java.io.InputStream; | |
| import java.io.PipedInputStream; | |
| import java.io.PipedOutputStream; | |
| import java.util.concurrent.ExecutorService; | |
| import java.util.concurrent.Executors; | |
| import java.util.concurrent.RejectedExecutionException; | |
| import java.util.concurrent.TimeUnit; | |
| import java.util.zip.GZIPInputStream; | |
| import java.util.zip.GZIPOutputStream; |