Reading in data from a csv or json

There are a few ways to do it, but we’re always going to use a queue.

// Read in these three files, then run the ready function
d3.queue()
  .defer(d3.csv, "../car-data.csv")
  .defer(d3.json, "map-data.json")
  .defer(d3.csv, "dinosaur-information.csv")
  .await(ready)

function ready(error, cars, map, dinosaurs) {
	if(error) throw error;

	// All of the car data from car-data.csv
	console.log(cars);

	// All of the map info from map-data.json
	console.log(map);
	
	// All the dinosaurs from dinosaur-information.csv
	console.log(dinosaurs);
}