> The answer depends on the reason why the callback called multiple times,
> possible are:
> - by design
> - when multiple parallel running functions callback
>
or:
- when there's a missing return statement
like this:
function read_something(name, cb) {
fs.readFile(name, 'utf8', function(err, result) {
if (err) cb(err);
result = foo(bar(result));
cb(null, result);
});
});
I'm seeing those bugs much more frequently than I'd like to.
// alex
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