chart = {
const path = d3.geoPath();
const svg = d3.create("svg")
.attr("viewBox", "0 0 960 600")
.style("width", "100%")
.style("height", "auto");
svg.append("g")
.selectAll("path")
.data(topojson.feature(us, us.objects.states).features)
.join("path")
.classed('interior', true)
.attr("fill", "darkgray")
.attr("d", path);
svg.append("path")
.datum(topojson.mesh(us, us.objects.states, (a, b) => a !== b))
.classed('outline', true)
.attr("fill", "none")
.attr("stroke", "white")
.attr("stroke-linejoin", "round")
.attr("d", path);
return svg.node();
}
projection = d3.geoAlbersUsa().scale(1280).translate([480, 300])
states = new Map(us.objects.states.geometries.map(d => [d.id, d.properties]))
us = d3.json("https://cdn.jsdelivr.net/npm/us-atlas@2/us/10m.json")
topojson = require("topojson-client@3")
d3 = require("d3@5")
import {form} from "@mbostock/form-input"
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