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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

const unsortedArray = [1, 4, 11, 2, 5, 55, 66, 21, 43, 0];

function mergeSort(array) {

	// If there is only one element in either of
	// the left/right arrays, return the array since it
	// it can't be split, and is, presumably, sorted!

	// I was confused as to why the array returned was the
	// result object from the merge() function and not this
	// array with a length of 1, and TBQH...
	// I still don't 100% get it. I think the return from merge()
	// overrides this one, somehow?
	if (array.length === 1) {
		return array;

	// Split the array in half
	let splitHere = parseInt(array.length / 2),
			leftArray = array.slice(0, splitHere),
			rightArray = array.slice(splitHere, array.length);

	return merge(mergeSort(leftArray), mergeSort(rightArray));

function merge(leftArray, rightArray) {

	// Create an array that will hold our result
	let result = [];

	// While both of the arrays have items:
	while(leftArray.length && rightArray.length) {

		// Note that .shift() returns the first item in an array
		// and _removes_ it from that array

		// Compare the starting items of each array
		// If the left starting item is smaller, move it to
		// the array where we are storing our result
		// otherwise, move the right starting item to result
		if (leftArray[0] <= rightArray[0]) {
		} else {

	// These while loops will execute only when the
	// above loop breaks when either left/right arrays
	// run out of items.

	// If just the left array has items left, move
	// the first one to the result
	while(leftArray.length) {

	// If just the left array has items left, move
	// the first one to the result
	while(rightArray.length) {

	// Until the array is sorted i.e. when leftArray and rightArray
	// no longer have items, the program will be caught in the
	// while loops above, but when none of those while statments
	// are true, the original array has been sorted and it can be
	// returned.

	// So, even though we are calling this function several times,
	// it doesn't makes it to the below return until the last go-round.

	// Wowza!
	return result;

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