Module: Javascript 3: Functional programming

Use the underscore library to experience functional programming constructs: map, reduce, filter, every, some, etc.

Learning Outcomes

You can use basic Javascript constructs: variables, functions, conditionals, loops, arrays, objects.
You can implement object orientation using the ES6 class construct.
You can use the Underscore library to program in a functional manner.

Why, what, how, and when you will learn about functional programming in Javascript.

Screencast 6 min

Understand the basics: how to use functions as values, functions as arguments, and functions as return values.

Screencast 32 min

Make your code more compact and understandable with Underscore.js

Reference guide to underscore functions

Annotated source code for Underscore. Highly readable.

Optional

Play around with functions using Underscore

Functional programming using Underscore

28 Jan 11:30 PM

Continue to explore functional programming using Underscore

30 Jan 11:30 PM

Yet more functional programming using Underscore

01 Feb 11:30 PM

Rx: < 6 min Av: 6-10 min Sd: 10-16 min DNF: 16+ min or incorrect

This in-class WOD assesses your ability to use the Underscore library to program in a functional style.