# Create JS pre-compiled libraries

**URL:** https://discussions.unity.com/t/create-js-pre-compiled-libraries/422275
**Category:** Scripting
**Tags:** Scripting
**Created:** [September 4, 2010, 8:13pm UTC](https://discussions.unity.com/t/create-js-pre-compiled-libraries/422275 "2010-09-04T20:13:00Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![anon\_48697915](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@anon\_48697915](https://discussions.unity.com/u/anon_48697915)
#### Post date: [September 4, 2010, 8:13pm UTC](https://discussions.unity.com/t/create-js-pre-compiled-libraries/422275/1 "2010-09-04T20:13:00Z")

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Is it possible ? Like a .dll, or a .swc. (I think it’s .tar.gz?)

I got too many classes and the compiler takes 6-7 seconds before finished compiling (after any changes, not when I click play). So I’d like to separate my stuff and makes pre-compiled libraries.

I’m using Unity3, and inside MonoDevelop, I’ve tried to create Package =\> Archive of Binaries =\> tar.gz and Mono always give me this error :

_Package creation failed. Could not find a part of the path ‘C:\Workspace\Unity\HomerunUnity\Temp\bin\Debug\Irrelvant.dll’._

Any ideas ?

Thanks !

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### Author: ![andeeeee](https://avatars.discourse-cdn.com/v4/letter/a/51bf81/32.png) [@andeeeee](https://discussions.unity.com/u/andeeeee)
#### Post date: [September 6, 2010, 1:50pm UTC](https://discussions.unity.com/t/create-js-pre-compiled-libraries/422275/2 "2010-09-06T13:50:29Z")

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I’m not sure it is possible to get the JS compiler to make a DLL that you can add to your project. You can use the command line Mono compilers to build a DLL and then drag that into a Unity project. However, Unity JS isn’t currently available as a standalone compiler, although you could do it with C#.

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<div class="post-metadata">

### Author: ![anon\_48697915](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@anon\_48697915](https://discussions.unity.com/u/anon_48697915)
#### Post date: [September 6, 2010, 8:56pm UTC](https://discussions.unity.com/t/create-js-pre-compiled-libraries/422275/3 "2010-09-06T20:56:20Z")

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> [@""](#):
>
> I’m not sure it is possible to get the JS compiler to make a DLL that you can add to your project. You can use the command line Mono compilers to build a DLL and then drag that into a Unity project. However, Unity JS isn’t currently available as a standalone compiler, although you could do it with C#.

Alright. Thanks for the reply ! I’ll check this out.