Re: A ping program in javascript?
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Re: A ping program in javascript?

From: Csaba Gabor <Csaba@z6.com>
Date: Wed Jul 20 2005 - 19:51:48 CEST



How about something like this for javascript ping times:



<body onload="alert('body loaded');


              window.startTime=new Date();


              var imgSrc='http://us.i1.yimg.com/us.yimg.com'+


                         '/i/us/nt/hdr/stw.gif'+


                         '?cacheBuster='+Math.random();


              document.getElementById('myPingTest').src=imgSrc">


<IMG id=myPingTest


     onload="var endTime=new Date();


             alert('ping time in milliseconds: '+


             (endTime.getMilliseconds()-


              window.startTime.getMilliseconds()))">


</body>



It assumes a cooperating server, of course, plus there is additional


delay due to server processing.  Still...  it may give you a rough


idea.  As implied by the "cacheBuster" (which line is there solely to


prevent browser cacheing), I would be very wary of cacheing effects


both of the image and the path taken to the server.



Csaba Gabor from Vienna



Egil Hansen wrote:


> Hi


>


> I'm wondering if its possible to write a javascript, that can ping a ip


> and return the average round trip time (like ping in dos/linux)?


> 


> Regards, Egil.


Received on Tue Oct 18 02:58:50 2005