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Ajax functionality - XMLHttpRequest

Hardik Raja
Ranch Hand

Joined: Feb 07, 2006
Posts: 117
Hello JavaRanchers,

The function below is a javascript function that has AJAX code to request and recieve data from a servlet.




Questions:

1.The above code works in firefox version 2.0.0.1.4 but not in Internet Explorer 7(Just displays a blank page). Any input on this ?

2.As I said earlier, this code works in firefox version 2.0.0.1.4 but it gives me the below error when it works on firefox version 3.0.1. I traced this error through firebug( an addon in firefox ) and it shows the below error on line 20,

uncaught exception: [Exception... "Not enough arguments [nsIXMLHttpRequest.send]" nsresult: "0x80570001 (NS_ERROR_XPC_NOT_ENOUGH_ARGS)" location: "JS frame :: http://localhost:8080/Iward/login :: xmlhttpPost :: line 20" data: no]


Line 0

Based on this error, I checked my javascript function code, but i am not able to understand whats wrong with it.

Could anyone please provide thier input on it ?

Thanks,
Hardik Raja
SCJP 5.0
[ August 18, 2008: Message edited by: Hardik Raja ]
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 60800
    
  65

Try send(null) or send ('').


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Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 60800
    
  65

Or better yet, follow the advice of the more experienced Ajax developers and adopt a library to handle all the intricacies and cross-browser nuances of Ajax for you. I highly recommend one of Prototype or jQuery. jQuery has the most painless Ajax integration, in my opinion.
Hardik Raja
Ranch Hand

Joined: Feb 07, 2006
Posts: 117
Dear Bear Bibeault,

Using send(null) doesn't display the error, I had mentioned earlier and thanks for you input on using jquery. Thank You.

Regards,
Hardik
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Ajax functionality - XMLHttpRequest
 
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