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From: "Chris M. Thomasson" <invalid@invalid.invalid>
Newsgroups: comp.lang.javascript
Subject: Re: Impact of implicit arrays...
Date: Tue, 21 Jun 2016 15:28:09 -0700
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On 6/21/2016 3:10 PM, Christoph M. Becker wrote:
> On 21.06.2016 at 23:43, Chris M. Thomasson wrote:
>
>> Humm... FWIW, for some reason I also really like the simple array based
>> method I am using now.
>>
>> Yours is easier to read, but for me using foo[0] for x, foo[1] for y,
>> ect looks more matrix like wrt indexing into an array; its not all that
>> bad to my eyes. Also, it makes iterating over the elements really
>> intuitive.
>
> Then you might be interested in typed arrays, see, for instance,
> <https://developer.mozilla.org/en/docs/Web/JavaScript/Typed_arrays>.

Yes, thank you. FWIW, I use these when I am working with WebGL. However, 
the fact that I need to use (new) for each member converting the 
following struct:
____________________________
struct someStruct {
   unsigned long id;
   char username[16];
   float amountDue;
};
____________________________


to the following typed array representation:
____________________________
var buffer = new ArrayBuffer(24);

// ... read the data into the buffer ...

var idView = new Uint32Array(buffer, 0, 1);
var usernameView = new Uint8Array(buffer, 4, 16);
var amountDueView = new Float32Array(buffer, 20, 1);
____________________________


Is still troublesome. I will do some benchmarks wrt looping through 
functional ops, and their intrusive equivalents. AFAICT, the intrusive 
technique basically has to win. :^o