XMLHttpRequest

[Haris]

Hi.

How should the simplest XMLHttpRequest look like ?
I create XMLHttpRequest object:
var xhr=new XMLHttpRequest();
// then the open mathod
xhr.open ("GET", "something.xml");
// send
xhr.send (null);
// and
xhr.onreadystatechange=function a { ... }

The function "a" is a callback I guess, but how to
get a response from the server in that callback ?
I use Lisp server Hunchentoot, and where to enter a Lisp code
to interact with the server ?

 

[Luuk]

Hi.

How should the simplest XMLHttpRequest look like ?
I create XMLHttpRequest object:
var xhr=new XMLHttpRequest();
// then the open mathod
xhr.open ("GET", "something.xml");
// send
xhr.send (null);
// and
xhr.onreadystatechange=function a { ... }

The function "a" is a callback I guess, but how to get a response from
the server in that callback ?
I use Lisp server Hunchentoot, and where to enter a Lisp code
to interact with the server ?

comp.lang.lisp ?

 

[Luuk]

comp.lang.lisp ?

or:
http://www.cl-user.net/asp/efS21/sdataQv5TMN5ES7WwDQ3g9y8X8yBX8yBXnMq=/sdataQu3F$sSHnB==

 

[Thomas 'PointedEars' Lahn]

How should the simplest XMLHttpRequest look like ?
I create XMLHttpRequest object:
var xhr=new XMLHttpRequest();
// then the open mathod
xhr.open ("GET", "something.xml");
// send
xhr.send (null);
// and
xhr.onreadystatechange=function a { ... }

The function "a" is a callback I guess,

It is (when syntactically correct written). That aside, you see where you
went wrong, don't you?

but how to get a response from the server in that callback ?

xhr.responseText or xhr.responseXML. RTFM.

I use Lisp server Hunchentoot, and where to enter a Lisp code
to interact with the server ?

Again, RTFM¹. You would use Lisp code at the server, and ECMAScript-based
code at the client. (I have yet to see a client-side Lisp script engine in
a Web browser.)

_______
¹ e.g., … err, Google is your friend. [psf 6.1]


PointedEars

 

[Tim Streater]

Hi.

How should the simplest XMLHttpRequest look like ?
I create XMLHttpRequest object:
var xhr=new XMLHttpRequest();
// then the open mathod
xhr.open ("GET", "something.xml");
// send
xhr.send (null);
// and
xhr.onreadystatechange=function a { ... }

The function "a" is a callback I guess, but how to
get a response from the server in that callback ?
I use Lisp server Hunchentoot, and where to enter a Lisp code
to interact with the server ?

Look here for a simple example:

http://www.clothears.org.uk