This program shows a tree of the Javascript properties of a webpage.
Very handy if you are writing a javascript and need to know which properties
are available and how they are called.
Snapshot
Here is a snapshot of the output for the "navigator"
property of Netscape v4.5. The two links in this example are disabled,
normally you can click on them to descend into that property.
| Property |
Type |
Value |
| navigator.appCodeName |
string |
Mozilla |
| navigator.appName |
string |
Netscape |
| navigator.appVersion |
string |
4.5 [en] (WinNT; I) |
| navigator.language |
string |
en |
| navigator.mimeTypes |
object |
[object MimeTypeArray] |
| navigator.platform |
string |
Win32 |
| navigator.plugins |
object |
[object PluginArray] |
| navigator.securityPolicy |
string |
Export policy |
| navigator.userAgent |
string |
Mozilla/4.5 [en] (WinNT; I) |
Download
The distribution contains just one file: "jprops.html". This is all you need to
install Jprops on your webserver - the program is written in javascript.
 Download jprops-1.3.zip (1.8Kb)
Download jprops-1.3.tar.gz (1.8Kb)
Install
- Unpack the distribution and upload the "jprops.html" file to your webserver.
- Add a link to "jprops.html" in the page(s) of which you want to view the
javascript properties:
<a href="jprops.html">[Show Properties]</a>
- Open your browser and click on the link you just created.
Notes
- Jprops only works on Netscape/Explorer version 4 or above.
- You can only view properties of pages on the same server as where "jprops.html"
is installed. This is not a limitation of Jprops, but due to general internet
security. A javascript in one window can only access the properties of
another window if both windows came from the same server.
- Some properties may not be visible or not browsable, due to limitations
in your browser. For example: Microsoft Explorer does not allow you
to look at the "navigator.plugins" property.
- If you have found a particular property then do not assume it will be
available in all browsers. Jprops shows the actual properties as available in
your browser for a particular webpage.
- The "navigator.plugins" property in Netscape will be empty initially.
It will be filled by Netscape when plugins are loaded. You can force the
loading of all plugins by looking at the "navigator.mimetypes"
with Jprops.
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