Call back function, variable scope?

[Mark Smith]

In the following code, should the variable e still be in scope on the
call back function, or could it be interpreted as null?

It seems to work in firefox, but IE gives the error "Member not found"


function showHelp(e,t)
{
$.get(
"showHelp.php",
{topic : t},
function(text) {
showTooltip(e,text);
}
);
}

 

[Henry]

In the following code, should the variable e still be in
scope on the call back function, or could it be interpreted
as null?

The outer function's formal parameter - e - will be in scope in the
inner function (visible on the scope chain for the call to the inner
function), and its value may be null.

It seems to work in firefox, but IE gives the error
"Member not found"

<snip>

In the absence of context and details the best you could expect is a
guess. My guess is that - e - is expected to refer to an event object
but the differences in the handling of event objects between IE and
firefox are not being appropriately handled by the code.