common javascript array manipulation methods

js-array-methods.md

Array Methods

name	modifies the original?	return value	description
push, unshift	yes	the length of the new array	add element(s) to an array
pop, shift	yes	the element removed	remove an element from the beginning or end of an array
reverse	yes	the new array	reverses the array
sort	yes	the new array	sort the array
splice	yes	an array of deleted items	delete and/or add items at a specific index
indexOf, lastIndexOf	no	the index, or -1 if not found	locate an item in an array
slice	no	a new array	retrieve a section of an array