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help coding a hash table

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  help coding a hash table JRough <janis.rough@gmail.com> - 2012-02-06 17:08 -0800
    Re: help coding a hash table Erwin Moller <erwinmollerusenet@xs4all.nl> - 2012-02-07 11:47 +0100
      Re: help coding a hash table Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-02-07 13:15 +0100

#11428 — help coding a hash table

How do I create a javascript associative array or a JSON object of
hours, minutes, and seconds because with code?
I think my JSON object is right but how do I create the object with 60
minutes for each hour and then 60 seconds for each minute?
Or how do I fill the array so that it is assocative?
data["hours"] =
"12:00","13:00","14:00","15:00","16:00","17:00","18:00","19:00",
"20:00","21:00","22:00","23:00","24:00",
"1:00","2:00","3:00"..."11:00"]
data["minutes"] =
"00","01","02","03","04","05","06","07","08","09","10".... "60"]
data["seconds"] =
"00","01","02","03","04","05","06","07","08","10","11"...."60"]

 var oTime = [12:00, 13:00, 14:00, 15:00, 16:00, 17:00, 18:00, 19:00,
20:00, 21:00, 22:00, 23:00, 24:00 ]
};
  { data:[{ 'hours': '12:00', 'minutes':
'00','02','03','04','05','06','07','08','09','seconds:
'00','01','02','03','04','05','06','07','08' },  ]
}

Many thanks,

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#11431

On 2/7/2012 2:08 AM, JRough wrote:
> How do I create a javascript associative array or a JSON object of
> hours, minutes, and seconds because with code?
> I think my JSON object is right but how do I create the object with 60
> minutes for each hour and then 60 seconds for each minute?
> Or how do I fill the array so that it is assocative?
> data["hours"] =
> "12:00","13:00","14:00","15:00","16:00","17:00","18:00","19:00",
> "20:00","21:00","22:00","23:00","24:00",
> "1:00","2:00","3:00"..."11:00"]
> data["minutes"] =
> "00","01","02","03","04","05","06","07","08","09","10".... "60"]
> data["seconds"] =
> "00","01","02","03","04","05","06","07","08","10","11"...."60"]
>
>   var oTime = [12:00, 13:00, 14:00, 15:00, 16:00, 17:00, 18:00, 19:00,
> 20:00, 21:00, 22:00, 23:00, 24:00 ]
> };
>    { data:[{ 'hours': '12:00', 'minutes':
> '00','02','03','04','05','06','07','08','09','seconds:
> '00','01','02','03','04','05','06','07','08' },  ]
> }
>
> Many thanks,

Don't.
If you must write a program that puts all integers between 0 and 
1.000.000.000 on the screen, you don't write a program like this:
document.write(1);
document.write(2);
document.write(3);
......
document.write(1000000000);

Or do you?

That is why the job is called programming. You write a loop.
I cannot think of any valid reason to construct an object that holds 
every hour, minute and second you can think of.
You simply store the hour, minute and second in a variable (or in 3 
variables if you prefer).
There is no need to preconstruct something that holds every possible 
value for a second (0 to 59).

So my advice: Rethink your problem.

About associative: If you create an empty object, just can add 
"properties" with values to it to your heart's liking. That way you have 
your associative array behaviour.

var myTime = new Object();
myTime.firstName = "J.";
myTime.famName = "Rough";



Regards,
Erwin Moller

-- 
"That which can be asserted without evidence, can be dismissed without 
evidence."
-- Christopher Hitchens

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#11434

Erwin Moller wrote:

> On 2/7/2012 2:08 AM, JRough wrote:
>> How do I create a javascript associative array […]
> 
> […]
> About associative: If you create an empty object, just can add
> "properties" with values to it to your heart's liking. That way you have
> your associative array behaviour.
> 
> var myTime = new Object();
> myTime.firstName = "J.";
> myTime.famName = "Rough";

However, by default there are no empty objects (although there are 
proprietary ways like assigning to the `__proto__' property to create them, 
leaving a from then on crippled object).  Even Object instances inherit from 
Object.prototype by default.

As a result, some property names (like "toString") are already used.  So you 
should avoid assigning to the corresponding properties in order to store 
user data.  Which points out *again* _that there are no *built-in* 
associative arrays in ECMAScript implementations_ (but you can try to 
emulate them, like with jsx.map.Map [1]).


PointedEars
___________
[1] <http://PointedEars.de/scripts/map.js>
-- 
When all you know is jQuery, every problem looks $(olvable).

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