Inside JavaScript

The history Object's Properties

You can find the properties of the history object in Table 10.11.

Table 10.11. The Properties of the history Object

Property

NS2

NS3

NS4

NS6

IE3a

IE3b

IE4

IE5

IE5.5

IE6

current

   

x

x

           
 

Read-only

 

Holds the current URL as a string. This property is restricted to Netscape Navigator signed scripts and scripts where the user has explicitly given permission to a script to use.

length

x

x

x

x

x

x

x

x

x

x

 

Read-only

 

Holds the length of the history list, as an integer. Be careful with this onethe natural tendency is to consider the current page as the most recent one in the history list and navigate from there, using this property as an indication of how far back in the history list you can go. Note, however, that the current page can actually be anywhere in the history list; it's not necessarily the most recent page.

next

   

x

x

           
 

Read-only

 

Holds the next URL in the history list as a string. This property is restricted to Netscape Navigator signed scripts and scripts where the user has explicitly given permission to a script to use.

previous

   

x

x

           
 

Read-only

 

Holds the previous URL in the history list as a string. This property is restricted to Netscape Navigator signed scripts and scripts where the user has explicitly given permission to a script to use.

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