Why String.prototype.match() returns null instead of empty array?

Question

Example taken from MDN webdocs

var paragraph = 'The quick brown fox jumps over the lazy dog. It barked.';
var regex = /[A-Z]/g;
var found = paragraph.match(regex);

console.log(found); // will return an array of matches and returns null when nothing matches.

Would like to know reasoning behind returning null instead of an Empty Array when nothing matches?

Answer 1

Probably also because Boolean([]) returns true