add solution

[an-marryKyslenko]

• DEMO LINK

[volodymyr-soltys97]

Good job 👍
Let's make your code better

[volodymyr-soltys97]

Suggested change

	const avarangeElement = document.querySelector('.average-population');
	const averageElement = document.querySelector('.average-population');

[volodymyr-soltys97]

Suggested change

	const avarange = Math.floor(total / populationCollection.length);
	const average = Math.floor(total / populationCollection.length);

[volodymyr-soltys97]

Suggested change

	const numberToStirng = typeof str !== 'string' ? str.toString() : str;
	const numberToString = typeof str !== 'string' ? str.toString() : str;

[volodymyr-soltys97]

Suggested change

	function addComma(str, diviteBy = 3) {
	function addComma(str, divideBy = 3) {

[anastasiiavorobiova]

Great work! Almost done!

[anastasiiavorobiova]

Suggested change

	function addComma(str, divideBy = 3) {
	const numberToString = typeof str !== 'string' ? str.toString() : str;
	const result = [];
	for (let i = 0; i < numberToString.length; ) {
	let part = '';
	if (numberToString.length % divideBy && i === 0) {
	part = numberToString.slice(i, i + (numberToString.length % divideBy));
	result.push(part);
	i = i + (numberToString.length % divideBy);
	continue;
	}
	part = numberToString.slice(i, i + divideBy);
	result.push(part);
	i = i + divideBy;
	}
	return result.join(',');
	}

[anastasiiavorobiova]

Suggested change

	totalElement.innerText = addComma(total);
	totalElement.innerText = total.toLocaleString('en-US');

[anastasiiavorobiova]

The same thing you can accomplish here

[anastasiiavorobiova]

Awesome!