JavaScript Getting Started Tutorial (7) History history Objects _ Basics

Given the need for security, the object receives a lot of restrictions and now only has the following properties and methods left. The history history object has the attribute of length, which lists the number of items in the history. The history that JavaScript can manage is limited to the range that the "forward" and "back" keys of the browser can go to. This property returns the and of the number of addresses that are contained under "forward" and "back" two keys.
History historical objects and has the following methods
Back () is equivalent to pressing the back key.
Forward () forward, is equivalent to pressing the "forward" key.
Go () Usage: history.go (x); In the range of history to a specified address. If x < 0, back x address, if x > 0, Forward x address, if x = = 0, refresh the page that is now open. History.go (0) is equivalent to Location.reload ().