improvement: Support numbers with commas in them (#2636)

src/tests/__snapshots__/charts.test.tsx.snap

@@ -0,0 +1,20 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`tryParseSpreadsheet works for numbers with comma in them 1`] = `
+Object {
+  "spreadsheet": Object {
+    "labels": Array [
+      "Week 1",
+      "Week 2",
+      "Week 3",
+    ],
+    "title": "Users",
+    "values": Array [
+      814,
+      10301,
+      4264,
+    ],
+  },
+  "type": "VALID_SPREADSHEET",
+}
+`;

src/tests/charts.test.tsx

@@ -0,0 +1,13 @@
+import { tryParseSpreadsheet } from "../charts";
+
+describe("tryParseSpreadsheet", () => {
+  it("works for numbers with comma in them", () => {
+    const result = tryParseSpreadsheet(
+      `Week Index${"\t"}Users
+Week 1${"\t"}814
+Week 2${"\t"}10,301
+Week 3${"\t"}4,264`,
+    );
+    expect(result).toMatchSnapshot();
+  });
+});