On 10/9/12 6:04 PM, Robert Ginda wrote:
But I never, ever use the symbol-known-as
"undefined" in script, since it's actually a write-able variable.
For what it's worth, it's not anymore. It used to be, but current ES
makes it a readonly non-configurable property of the global. Not sure
to what extent UAs have caught up with the spec on that.
Of course in cases like this:
function foo(undefined) {
// Code using "undefined" here loses
}
you still have a problem....
I'd suggest also treating null as missing if possible.
In general, or for the specific IDB case?
-Boris
