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| From | "Christoph M. Becker" <cmbecker69@arcor.de> |
| Newsgroups | comp.lang.javascript |
| Subject | Re: Trying to understand OOP, Umpteenth time |
| Date | Fri, 5 Jan 2018 15:48:18 +0100 |
| Organization | solani.org |
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On 05.01.2018 at 15:10, bit-naughty@hotmail.com wrote: > OK, so I think I get it. If you have a class X (OK, you can't, but maybe by now you can...ugh! I donno, you get my point?), you can say var foo = new X() ; ,and then you can execute stuff *inside* X like this: foo.m() ;. > > But then you can also do var bar = new X();, and then you'd have a second instance of X, right? My question is WHY? Why would you need the same thing twice?? ie. in short, what is the whole POINT of doing OOP? Where would you NEED to do the var bar stuff, after you'd already done the var foo? new classname() creates a new object instance, what is quite comparable to a baking machine producing a bread. If there should be more than one bread, you have to press the button again. This again is quite similar to a car factory, which will produce many cars (not only a single one). If you want to shiftGear(), accelerate() or brake() a certain car, the others should not be affected, of course. -- Christoph M. Becker
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Trying to understand OOP, Umpteenth time bit-naughty@hotmail.com - 2018-01-05 06:10 -0800 Re: Trying to understand OOP, Umpteenth time "Christoph M. Becker" <cmbecker69@arcor.de> - 2018-01-05 15:48 +0100 Re: Trying to understand OOP, Umpteenth time John G Harris <niam@jghnorth.org.uk.invalid> - 2018-01-05 15:14 +0000
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