IMHO, the only reason to define member functions from within the
constructor is to make them what DC calls "privileged" functions: thanks
to the closure, they have access to private state (local variables of
the constructor function) yet are publicly accessible.
Any public function that just relies on public properties (this.xxx
access) should be provided through the constructor's prototype as it
consumes less memory and makes for faster instantiation.
As an added benefit (although I'm sure many will say it's Pandora's box
from their POV), it opens the door to global overrides, AOP-style, as
altering a function at the protototype level will impact all instances.
'HTH
--
Christophe Porteneuve
[email protected]
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