Week 3

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

Week 2 Review

Skills Review

• Data structures (arrays & objects)
• Loops

Homework and labs

• Review of our first assignment
• Questions and demonstration

Lecture and Labs

Example leaflet application

• In class walk-through of example application

Lab 1: Using functions (liberally!)

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

Live coding: refactoring code into functions

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

underscore.js

Lab 2: Library overview

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

^*Mostly!

Assignment

• Complete Week 3 Labs
• Review difficult concepts (this is subjective)
• Finish week 2 assignments if necessary