Re: A UUID function for web developers

"L. David Baron" <[email protected]> Thu, 17 Mar 2016 14:58:31 -0700

Newsgroups	gmane.comp.mozilla.devel.seamonkey
Message-ID	<[email protected]>

You could also write your own, such as the following (which probably
could be simplified, but it works for me):

function hex_pad(num)
{
    var s = num.toString(16);
    while (s.length < 4) {
        s = "0" + s;
    }
    return s;
}

function uuidgen()
{
    var a = new Uint16Array(8);
    window.crypto.getRandomValues(a);
    return a.reduce((prev, item, idx) =>
                      prev + hex_pad(item) + (1 <= idx && idx < 5 ? "-" : ""),
                    "");
}

It doesn't seem like there's a need to add it to the platform given
that it can be written relatively simply using existing platform
features.

-David

On Thursday 2016-03-17 17:44 -0400, Kohei Yoshino wrote:
> I have a simple utility function to get a UUID:
> https://github.com/bzdeck/flaretail.js/blob/master/scripts/helpers.js#L864
> 
> Does it work?
> 
> -Kohei
> 
> On 2016-03-17 5:25 PM, [email protected] wrote:
> >Is it possible to introduce a function for getting a system generated UUID through javascript? It has been a long time coming. I am of the opinion this function should be fast-tracked into browsers, since it has been a lingering and deepening hole in the feature set of browsers.
> >
> >Maybe at the next meeting of groups of developers of different browsers, a consensus can be made regarding how to add this function, and they can immediately set out to independently roll it out. Having it become a part of an official standards document is a secondary concern.

-- 
𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                          https://www.mozilla.org/   𝄂
             Before I built a wall I'd ask to know
             What I was walling in or walling out,
             And to whom I was like to give offense.
               - Robert Frost, Mending Wall (1914)

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