Swift 4 Recipes: Hundreds of Useful Hand-picked Code Snippets

© Yanis Zafirópulos 2019

Yanis ZafirópulosSwift 4 Recipeshttps://doi.org/10.1007/978-1-4842-4182-0_1

1. Introduction

Yanis Zafirópulos¹ 

(1)

Granada, Spain

 

Now that you have gotten your hands on this little book, let’s get them a bit... dirty. And what’s better than delving into our first program?

In this chapter, we’ll see how we can write our first program in Swift, compile it, run it, and even see how Swift can be used as a scripting language.

1.1 Getting Familiar with Swift

Problem

You’d like to execute and compile a simple Swift program that you just created.

Solution

Fire up your favorite editor, and let’s write this very basic one line of code.

print("Hello Swift!")

How It Works

Now that we already have our code file, let’s save this as hello.swift ...