Math.random returns the same value with the current version of Jint

[George Kinsman]

Hi,

I found this thread regarding Math.random returning the same value for subsequent calls: https://groups.google.com/forum/#!searchin/ravendb/math.random/ravendb/79lDNJ-8nMY/oNc9XeGJBAAJ

I found this issue with Math.random() int Jint 2.4.0 which was fixed in 2.4.1 with this commit: https://github.com/mediaclip/jint/commit/a74013b5e66fecd01df1d483823b8766a892db7a.

RavenDB still uses 2.4.0, which explains why it doesn't work. Unfortunately it appears that the SharedLibs have been ilmerged, so I can't verify the problem by replacing the dll.

I've tried several other pseudo-rng libraries, but it appears that Jint is unable to parse them - has anyone had any success including them in a ScripedPatchRequest?

Cheers,

George

[Oren Eini (Ayende Rahien)]

http://issues.hibernatingrhinos.com/issue/RavenDB-4281

Hibernating Rhinos Ltd  

Oren Eini l CEO l Mobile: + 972-52-548-6969

Office: +972-4-622-7811 l Fax: +972-153-4-622-7811

 

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[Oren Eini (Ayende Rahien)]

In the meantime, use:

var seed = 1234;

function random() {

  seed ^= (seed << 21);

  seed ^= (seed >>> 35);

  seed ^= (seed << 4);

  return seed;

}

Hibernating Rhinos Ltd  

Oren Eini l CEO l Mobile: + 972-52-548-6969

Office: +972-4-622-7811 l Fax: +972-153-4-622-7811

 

On Wed, Feb 3, 2016 at 5:37 AM, George Kinsman <geo...@georgekinsman.com> wrote:

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