CPNT 262 Day 2 - Numbers and operators

Housekeeping

• Tooltime: Install the ES Lint VS Code extension
• New Dailies process
  • Forking and cloning Gists

Trophy of the day

• Upgraded Tip Calculator!

1. Variable Declaration vs Assignment

Materials

• Variables - declaration vs assignment

2. Handling Syntax Errors

Materials

• What went wrong? Troubleshooting JavaScript

Activity

• An erroneous example

3. Numbers and arithmetic operators

Materials

• Addition Operator
• Numbers, strings and coercion

Activity

Instructions

1. Fork and clone this Tip Calculator to your daily workspace.
2. Rename the cloned folder to tip-calculator;
3. Follow as many of the Activity steps as you can;
4. Commit and push your changes to GitHub;
5. Submit your Gist link as a daily in Brightspace.

4. Open Lab

• Trophy of the Day
• Free Code Camp Exercises
• Assignments
• Prep for tomorrow

Prep

MDN Readings

• Storing the information you need — Variables
• Basic math in JavaScript — numbers and operators
• What went wrong? Troubleshooting JavaScript

Other Resources

• JavaScript type coercion explained on Free Code Camp

Free Code Camp Exercises

• Javascript basics: Exercises 9-22
  • Start: Add Two Numbers with JavaScript
  • Complete and Stop (or not): Compound Assignment With Augmented Division