@techmely/utils/groupBy.global.js

Collection of helpful JavaScript / TypeScript utils

/*!
 * @techmely/utils
 * Copyright(c) 2021-2024 Techmely <techmely.creation@gmail.com>
 * MIT Licensed
 */

"use strict";
(() => {
  // src/groupBy.ts
  function groupBy(list, keyGetter) {
    const map = /* @__PURE__ */ new Map();
    for (const item of list) {
      const key = keyGetter(item);
      const collection = map.get(key);
      if (collection) {
        collection.push(item);
      } else {
        map.set(key, [item]);
      }
    }
    return map;
  }
})();