W1156 Conditional Syntactic Sugar

Within these castle walls be forged Mavens of Computer Science ...

— Merlin, The Coder

White Rock Sugar

Prerequisites

• W1151 Conditional and Flow Chart

Introduction

While it's possible to perform all necessary comparisons with the conditional that we studied earlier, in some cases doing so can become unwieldy and a bit cumbersome. In this experience we'll explore two alternative options.

Chained If-Else Statements

If-else statements can be chained. This is appropriate when there are a series of mutually exclusive options. Consider:

var color = "Pink"

if color == "Pink" {
    print("Mix red and white")
} else if color == "Orange" {
    print("Mix red and yellow")
} else if color == "Green" {
    print("Mix yellow and blue")
} else if color == "Purple" {
    print("Mix blue and red")
}