Week 3

As always: make a copy of this repository to commit changes to

Class Outline

Week 2 Review & Introduction

• Posting in Gitter
• Functions
• Data structures

Functions continued

Section 1: Using functions (liberally!)

• Function anatomy
  • Naming functions
  • Providing arguments
  • The function body
  • The return statement
• Thinking functionally
  • Programs are data and its transformations
  • Functions are just transformations on data
  • Functions as values
• Lab 1

Live coding: refactoring code into functions

• Step through the code and discuss
• Imagine alternative code flows
• Organize the code
• Make code DRYer ('don't repeat yourself')
  • Redundant code is a headache to maintain

underscore.js

Section 2: Library overview

• Selecting (filtering for) elements in lists
• each: No more for loops!^*
• Lab 2

^*Mostly!

Homework Assignment (Due: Wednesday, February 1)

• Complete Week 3 Labs (Lab 2, Part 4 is an Optional Challenge)