list	instance properties	type
	length	number			https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/length
list	instance methods	result type	parameters
	concat	list	(any)		https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat
	includes	true/false	value		https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes
	indexOf	number	value		https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
	join	text	separator text		https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/join
	lastIndexOf	number	value		https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf
	slice	list	fromIndex	toIndex	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice