Introduction

In this lab you'll solidify your understanding of JS and the DOM by building a fun and interactive web game using only JS and the DOM API. This is a pretty lengthy assignment, but it is split between a lab portion and a homework portion.

Try and complete as much as you can today in lab, but the finished assignment will be do next Thursday, February 28. There will be a checkoff after section 2.3. Try and submit before you leave regardless of whether you finish or not. It is checked for completion.

• Solution

Checkoff Submission

Due: 11:59PM, February 19

Lab 2 - Lab 2 Submission

HW 2 Submission

Due: 11:59PM, February 28

HW 2 - HW 2 Submission

Learning Goals:

by the end of this lab you should

• Understand how to write fundamental programming concepts (loops, variables, etc) in JS.
• Have an awareness and understanding of the DOM API and how to manipulate the DOM from within a JS file.
• Feel comfortable writing JS and implementing programs in JS.

Task 1 - Python ⇒ JS

To catch you up to speed on JS syntax, we've written a guide for going from Python to JS.

Python ⇒ JS

Once you've read it, please discuss the questions below with a partner. Try not looking at the answers until you've decided on an answer!

1. What is the difference between let and const?
   • Answer
2. Pick the correct way to compare "0" and 0, such that it returns false (they're not the same)
   1. "0" == 0
   2. "0" === 0
   3. "0".isEqual(0);
   • Answer
3. How do we iterate through items in an array in JS?
   • Answer
4. What is the difference between undefined and null?
   • Answer