HIBP DataClass count

hibp-data-class-count.mjs

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

const HIBP_URL = "https://haveibeenpwned.com/api/v3/breaches";

const breaches = await fetch(HIBP_URL).then(res => res.json());
const count = breaches.length;

const stats = breaches.reduce((stats, breach) => {
  const count = breach.DataClasses.length;
  if (count in stats) {
    stats[count].push(stringify(breach));
  } else {
    stats[count] = [stringify(breach)];
  }
  return stats;
}, {});

let sum = 0;
console.log("DATACLASSES | BREACHES\n----|----")
for (const [dataClassCount, breaches] of Object.entries(stats)) {
  sum += breaches.length;
  const pct = Intl.NumberFormat("en", { style: "percent" }).format(sum / count);
  console.log(`${dataClassCount} | ${breaches.length} (${pct})`);
}

function stringify({Title, Name}) {
  return `${Title} (${Name})`;
}

DATACLASSES	BREACHES
1	7 (1%)
2	71 (11%)
3	89 (24%)
4	153 (47%)
5	96 (61%)
6	85 (73%)
7	60 (82%)
8	45 (89%)
9	20 (92%)
10	21 (95%)
11	11 (96%)
12	8 (98%)
13	5 (98%)
14	1 (99%)
15	2 (99%)
16	3 (99%)
17	1 (99%)
19	1 (100%)
20	2 (100%)
25	1 (100%)