As a new javascript developer, it took me a while to find out what was wrong in the script given P.43 of the developers guide and fix it...

In the DG we can read :

var socket = new TCPSocket(false);
var result = "";
socket.onConnect = function()
{
write("GET /; HTTP/1.0\r\n\r\n");
};
socket.onData = function()
{
result += read();
};
(...)

And as it it does not work (at least with me...)

So i had to add to transform
"write" into "socket.write"
and
"read" intot "soclet.read"
to make ot work properly

so the code now is :

var socket = new TCPSocket(false);
var result = "";
socket.onConnect = function()
{
socket.write("GET /; HTTP/1.0\r\n\r\n");
};
socket.onData = function()
{
result += socket.read();
};

(...)

BTW, if it is a question of "scope", maybe it might work somewhere else but for me it solved the problem and this post is for the beginers as i am, so they can save time...
And I also think that the code is much more clear that way.

HTH,

Roland, Paris, France

Instead of 'socket' above, you can use this.read() and this.write() while inside a callback. See the Appendix in the Dev Guide describing sockets and the 'this' keyword in the Callbacks section.