09. Catalogue js fundamentals

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 = [];
    listKeys.push(alphaObj);
  });

  const filteredArr = listKeys.reduce((acc, current) => {
    const x = acc.find((item) => item.key === current.key);
    if (!x) {
      return acc.concat([current]);
    }
    return acc;
  }, []);

  args.forEach((element) => {
    const key = element.charAt(0);

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

  filteredArr.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}`);
    });
  });
}