let multiplyTable = [];

for (let i = 1; i <= 10; i++) {
	multiplyTable[i] = [];

	for (let j = 1; j <= 10; j++) {
		multiplyTable[i][j] = j * i;
	}
}

const htmlTable = (arr) => {
	let result = "<table>";
	for(let i = 1; i < arr.length; i++) {
		result += "<tr>";
		for(let j = 1; j < arr[i].length; j++){
			result += `<td>${arr[i][j]}</td>`;
		}
		result += "</tr>";
	}
	result += "</table>";

	return result;
}

document.querySelector('body').insertAdjacentHTML('beforeend', htmlTable(multiplyTable));