Prepare JSON data for barchart in D3

This week you will make your first visualization in D3, but before you start to learn how D3 work, you will prepare your dataset first. The most convenient way to load your data with D3 is to use JSON format. Read this introduction to JSON and follow other links on w3school (like JSON data types, JSON objects) to make sure, that you know how the JSON format looks like and why it is handy to use it.


Create folder Week 3 in your Homework folder and push the following files: