// us = FileAttachment("counties-albers-10m.json").json()
import{us}from'@d3/bubble-map'
format=d3.format(",.0f")
path=d3.geoPath()
topojson=require("topojson-client@3")
import{legend}from"@d3/color-legend"
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.