The starting point of writing any Immutable.js code is to create an immutable collection. In this chapter, that's just what we'll do. There are a number of ways to create immutable collections, and you'll learn what they are and when they are appropriate to use. Specifically, we'll look at the following:

• Using Immutable.js constructors
• Using utility functions to create collections
• Parsing JavaScript types into Immutable.js collections