[gregor]

I'm trying to evaluate a JSON response but I'm getting a syntax error:

var objR = eval("(" + this.xhr.responseText + ")");
// produces 'syntax error: ()'

The response itself looks like this:

{
"user" :
	{
	"update" : "OK",
	"country" : "CA",
	"email" : "member@example.com",
	"firstname" : "Gregor",
	"lastname" : "MacGregor",
	"gender" : "M",
	"username" : "greg",
	"postal" : "90210",
	"agree" : "true"
	}
}

The process is simple:

1. I post some form data a la Ajax to a template

2. Posted data gets processed by a proprietary server side language (the company I work
for uses their own homebrew programming language).

3. If everything goes well the new data to gets written to the template like this:

{
"user" :
	{
	"update" : "OK",
	"country" : "##country##",
	"email" : "##email##",
	"firstname" : "##firstname##",
	"lastname" : "##lastname##",
	"gender" : "##gender##",
	"username" : "##username##",
	"postal" : "##postal##",
	"agree" : "##agree##"
	}
}

4. When the XMLHttpRequest object's status is 200 and readystate is 4 I eval() the response text (JSON data)

Despite the syntax error, if I do something like this:

var objR = eval("(" + this.xhr.responseText + ")");
var user = objR.user;
alert(user.username);

... Firefox logs the syntax error BUT an alert pops up with the username value. So, syntactically, something is awry but I am actually getting back an object that I can access.

Any ideas on how to get rid of the syntax error?

[stickmus]

What are the quoted brackets "(" for? Have you tried it without?

var objR = eval(this.xhr.responseText);

[gregor]

Originally Posted by stickmus

What are the quoted brackets "(" for?

See here: http://www.thescripts.com/forum/thread499662.html

...the error that I was receiving seems to have magically disappeared: I have no idea why but it has. So I'll leave it at that. Thanks tho stickmus...