Why does null increase the length of an array, even if it represents an empty value?

Question

When "null" is included in the elements of an array, it counts the length of the array. But “zero” should not mean any value. Then why is this happening?

var myArray = ["pizza", "burger", null];

var test = function (input) {
	return input.length;
};
document.write(test(myArray));

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Answer 1

A null value represents the intentional absence of any object value. This is one of the basic JavaScript values.

This is not completely absent, i.e. intentional absence, which means that someone wants to get a zero value in the position and use / update it later.

null have a unique meaning

https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/null

Answer 2

, null . null -

: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/null

Answer 3

Layman, , -. null , , .

Answer 4

null , ,