Instead, functional programming prefers to take an existing variable and pass it through a “pipeline” (a function or functions) that transforms it into a new variable, leaving the original as-is.

Functional programming languages can have objects, but generally those objects are immutable — either arguments or return values to functions. There are no for/next loops, as those imply state ...

We'll dive into concepts such as pure functions, immutability, higher-order functions, and functional composition. By adopting a functional programming approach, you'll be able to write code that ...