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Groups > comp.lang.javascript > #30682
| Newsgroups | comp.lang.javascript |
|---|---|
| Date | 2016-06-18 12:47 -0700 |
| References | <njhj52$hl3$1@gioia.aioe.org> <4a1c28ea-447b-4e9b-9c75-68ef85c379e7@googlegroups.com> <njq6qn$qc3$1@gioia.aioe.org> |
| Message-ID | <a1db3c29-049f-44a0-ae2d-e6c38776ddd7@googlegroups.com> (permalink) |
| Subject | Re: Impact of implicit arrays... |
| From | "Michael Haufe (TNO)" <tno@thenewobjective.com> |
On Tuesday, June 14, 2016 at 7:17:37 PM UTC-5, Chris M. Thomasson wrote:
> Notice that both approaches have caveats, but both of them
> will not have a chance to create a shi% load of objects!
> Do you have some better ideas here?
This still feels like premature optimization. I'd say start with implementing this in a naive way and optimize from there (after you benchmark). It won't help if on step 1 you have a potentially efficient but cryptic implementation and later on at step N you want/need to refactor but can't because you've built upon a non-obvious implementation.
Something Naive (ES6):
class Complex{}
class ComplexRect extends Complex{
conj(){
return new ComplexRext(this.re,-this.im)
}
constructor(re,im){
this.re = re
this.im = im
}
equals(cr){
return this.re == cr.re && this.im == cr.im
}
magnitude(){
return Math.hypot(this.re,this.im)
}
plus(cr){
return new ComplexRect(this.re + cr.re, this.im + cr.im)
}
times(cr){
return new ComplexRect(
this.re*cr.re - this.im*cr.im,
this.re*cr.im + cr.re*this.im
)
}
//TODO: etc
}
class ComplexPolar extends Complex {
constructor(r, theta){
this.r = r
this.theta = theta
}
// TODO
}
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Impact of implicit arrays... "Chris M. Thomasson" <nospam@nospam.com> - 2016-06-11 10:52 -0700
Re: Impact of implicit arrays... Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-06-12 12:16 +0200
Re: Impact of implicit arrays... "Chris M. Thomasson" <nospam@nospam.com> - 2016-06-13 12:23 -0700
Re: Impact of implicit arrays... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-06-13 22:00 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <nospam@nospam.com> - 2016-06-14 17:17 -0700
Re: Impact of implicit arrays... Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-06-15 06:55 +0200
Re: Impact of implicit arrays... "Chris M. Thomasson" <nospam@nospam.invalid> - 2016-06-14 22:19 -0700
Re: Impact of implicit arrays... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-06-18 12:47 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-21 14:43 -0700
Re: Impact of implicit arrays... "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-06-22 00:10 +0200
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-21 15:28 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-21 15:31 -0700
Re: Impact of implicit arrays... "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-06-22 11:55 +0200
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-23 12:23 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-23 14:14 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-23 14:16 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-23 18:14 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-23 18:46 -0700
Re: Impact of implicit arrays... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-06-21 17:35 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-21 21:08 -0700
Re: Impact of implicit arrays... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-06-21 23:09 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-23 14:38 -0700
Re: Impact of implicit arrays... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-06-24 07:16 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-06-25 18:03 -0700
Re: Impact of implicit arrays... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-06-25 18:24 -0700
Re: Impact of implicit arrays... "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-07-01 13:52 -0700
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