If don't want to learn the ascii codes by heart (or look them up), you can
use charCodeAt() like this:
var first:int = ("A").charCodeAt(0);
var last:int = ("Z").charCodeAt(0);
for (var i:int = first; i <= last; i++) {
trace(String.fromCharCode(i));
}
Cheers
Juan Pablo Califano
2010/6/17 Karl DeSaulniers <[email protected]>
> Ah thanks Steve.
> So is 97 to 123 the placement of upper and lowercase letters and the
> numbers on the CharCode chart?
> and are the upper and lowercase letters 32 letters apart on the chart?
> Trying to understand where you got these values. Your solution is very good
> and interesting to me.
> Also, why random off of 62? Is that the total characters in the array
> alphaNumeric?
> Thank you for this.
>
> Karl
>
>
>
> On Jun 17, 2010, at 12:57 AM, Steven Sacks wrote:
>
> RegEx isn't really used for what you're talking about.
>>
>> You should use ascii codes to create your alphanumeric array and then
>> choose random indexes from it to create your random string.
>>
>> var i:int;
>> var alphaNumeric:Array = [];
>> for (i = 97; i < 123; ++i)
>> {
>> alphaNumeric.push(String.fromCharCode(i));
>> alphaNumeric.push(String.fromCharCode(i - 32));
>> }
>> for (i = 0; i < 10; ++i)
>> {
>> alphaNumeric.push(i);
>> }
>> function getRandomString(i:int):String
>> {
>> var str:String = "";
>> while (i--)
>> {
>> str += alphaNumeric[Math.round(Math.random() * 62)];
>> }
>> return str;
>> }
>>
>> trace(getRandomString(8));
>> -- lKzU4e0X
>>
>> It's worth pointing out that Math.random() is merely decent at generating
>> random values. If you really need random values, it is better to use
>> something like the Parker Miller pseudo-random number generator.
>>
>> http://www.gskinner.com/blog/archives/2008/01/source_code_see.html
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>>
>
> Karl DeSaulniers
> Design Drumm
> http://designdrumm.com
>
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