Introduction to Our Functional Core

A walkthrough of what our functional core is and how we'll go about making it.

The functional core

In this chapter, we’ll dive into the functional core, sometimes called the business logic of our component. Functional-core is the F for fun in "Do fun things with big loud worker-bees.” In the previous chapter, we worked with data. We carved our project into hollow modules holding structs that form our data skeleton. This chapter will fill those empty modules up with functions, each logically addressing a part of the whole functional core. The following figure shows where this core fits:

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