Moved JS to external file

basic-example/basic-example.js

@@ -0,0 +1,64 @@
+import * as d3 from "https://cdn.skypack.dev/d3@7";
+const url = "https://duolingo.checksch.de/duo_user_info.json";
+
+fetch(url)
+    .then((res) => res.json())
+    .then((out) => {
+        const langInfo = out.lang_data;
+
+        let langInfoPrepped = [];
+        Object.entries(langInfo).forEach((el) => {
+            let item = {};
+            item["name"] = el[1].learningLanguage;
+            item["count"] = el[1].xp;
+
+            // Filter irrelevant items
+            if (item["count"] > 500) {
+                langInfoPrepped.push(item);
+            }
+        });
+
+        const fn = (d) => d.count;
+        const data = d3.pie().value(fn)(langInfoPrepped);
+
+        const arc = d3
+            .arc()
+            .innerRadius(210)
+            .outerRadius(310)
+            .padRadius(300)
+            .padAngle(2 / 300)
+            .cornerRadius(8);
+
+        const js = d3.select("#js");
+        js.select(".loading").remove();
+
+        const svg = js
+            .append("svg")
+            .attr("viewBox", "-320 -320 640 640")
+            .attr("width", "400")
+            .attr("height", "400");
+
+        for (const d of data) {
+            svg.append("path").style("fill", "rebeccapurple").attr("d", arc(d));
+
+            const text = svg
+                .append("text")
+                .style("fill", "white")
+                .attr("transform", `translate(${arc.centroid(d).join(",")})`)
+                .attr("text-anchor", "middle");
+
+            text
+                .append("tspan")
+                .style("font-size", "24")
+                .attr("x", "0")
+                .text(d.data.name);
+
+            text
+                .append("tspan")
+                .style("font-size", "18")
+                .attr("x", "0")
+                .attr("dy", "1.3em")
+                .text(d.value);
+        }
+    })
+    .catch((err) => console.log(err));