09. Catalogue js fundamentals v2

function catalogue(args) {
  const listKeys = [];

  args.sort((a, b) => a.localeCompare(b));

  args.forEach((element) => {
    const key = element.charAt(0);
    const alphaObj = {};
    alphaObj.key = key;
    alphaObj.value = [];
    const dub = listKeys.filter((el) => el.key === key).length;
    if (dub === 0) {
      listKeys.push(alphaObj);
    }

    listKeys.forEach((el) => {
      if (el.key === key) {
        el.value.push(element);
      }
    });
  });

  listKeys.forEach((element) => {
    const productName = element.key;
    const productPrice = element.value;
    console.log(`${productName}`);
    productPrice.forEach((el) => {
      const [name, price] = el.split(':');
      name.trimEnd();


      console.log(`  ${name.trimEnd()}:${price}`);
    });
  });
}