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    const areAnagrams = (word1, word2) => {
  const clean = str => str.replace(/\s/g, '').toLowerCase();
  const count = str => Array.from(clean(str)).reduce((map, char) => map.set(char, (map.get(char) || 0) + 1), new Map());

  const map1 = count(word1);
  const map2 = count(word2);

  return Array.from(map1.keys()).every(char => map1.get(char) === map2.get(char));
};
    Test Cases 
    // Since Node 10, we're using Mocha.
// You can use `chai` for assertions.
const chai = require("chai");
const assert = chai.assert;
const Test = require('@codewars/test-compat');

// Uncomment the following line to disable truncating failure messages for deep equals, do:
// chai.config.truncateThreshold = 0;
// Since Node 12, we no longer include assertions from our deprecated custom test framework by default.
// Uncomment the following to use the old assertions:
// const Test = require("@codewars/test-compat");

describe("Anagram Detector", function () {
  it("should return true for anagrams", function () {
    Test.assertEquals(areAnagrams("listen", "silent"), true);
    Test.assertEquals(areAnagrams("Dormitory", "dirty room"), true);
    Test.assertEquals(areAnagrams("The Morse Code", "Here come dots"), true);
    Test.assertEquals(areAnagrams("Astronomer", "Moon starer"), true);
  });

  it("should return false for non-anagrams", function () {
    Test.assertEquals(areAnagrams("hello", "world"), false);
    Test.assertEquals(areAnagrams("abc", "def"), false);
  });

  it("should handle spaces and case insensitivity", function () {
    Test.assertEquals(areAnagrams("Astronomer", "moon starer"), true);
  });
});
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