Subj : String concat problem
To   : netscape.public.mozilla.jseng
From : Niklas Lindquist
Date : Tue Apr 20 2004 03:19 pm

I have created a class exposing a string property. It works like a charm,
except when it comes to using it to build longer strings.
In JavaScript:
s = myobj.name;
s = 'Pre: ' + myobj.name;
s = myobj.name.length + ' post';
all works fine, but:
s = myobj.name + ' post';
only returns the name property and doesn't concatenate it with ' post'. I
can run toLowerCase() and similar functions on my string, so it seems to be
correct.

I have initialized my string in the getProperty hook:
int length = ::strlen(pDoc->getName()) + 1;
char* buffer = reinterpret_cast<char*>(::JS_malloc(cx, length));
::strcpy(buffer, pDoc->getName());
JSString *str = ::JS_NewString(cx, buffer, length);
*vp = STRING_TO_JSVAL(str);

Have I missed something?

.