Hehe, I like those examples with cats ;)
Technically, you describe all correct. The article is quite good for
novices. Though usually exactly `by-value` is used (regarding ES) for
both cases (objects, primitives): in case of object the address is
passed as a value (your "wire" in the article).
I also recommend to think about this strategy of passing/assignment
objects as not `by-reference` but as `by-pointer` (from C/C++
viewpoint). You used terms "assignment" and "mutation", though usually
for the first term stands "rebinding", since this topic is related to
_name bindings_ (which in turn are related with lexical environments).
In my recent article I talked about name bindings and in particular
rebinding and mutation operations related with them:
http://dmitrysoshnikov.com/ecmascript/es5-chapter-3-1-lexical-environments-common-theory/#name-binding
Also, if you're interested, there is my old article on evaluation
strategies, where the same topic is discussed in detail:
http://dmitrysoshnikov.com/ecmascript/chapter-8-evaluation-strategy/
This abstract `by-pointer` can be also named as `by-sharing` (I like
this naming since it allows to see the exact difference in theoretical
by-reference and by-value strategies).
Dmitry.
On 27.12.2010 15:13, Nick Morgan wrote:
Hi guys
I've written a new blog post about something that's been bothering me
for a while - the distinction between pass-by-reference and pass-by-value.
http://skilldrick.co.uk/2010/12/clearing-up-the-confusion-around-javascript-references/
I'd like to know if anything either doesn't make sense or is just
plain wrong.
Cheers!
--
Nick Morgan
http://skilldrick.co.uk
@skilldrick <http://twitter.com/skilldrick>
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