The JavaScript implementation used in Mozilla is called SpiderMonkey. It is also available as a seperate library and can be embedded in own applications: http://www.mozilla.org/js/spidermonkey/

OpenGroupware.org/SOPE includes NGJavaScript which is a SpiderMonkey/Objective-C bridge: http://www.opengroupware.org/cvsweb/cvsweb.cgi/OpenGroupware.org/SOPE/skyrix-sope/NGJavaScript/

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Anyone know how this compares with e.g. JavaScriptCore?

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The JavaScript implementation used in Mozilla is (far ?) better than the JavaScriptCore. In my last application I have to used Webkit and his JavaScript implementation and on some complex pages with lot of JavaScript the JavaScriptCore crashes whereas Mozilla just run fine.

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SpiderMonkey is the JavaScript reference implementation.

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I want to embed the Mozilla JavaScript Engine in my application so that i can use it (JS Engine) as a plugin system… has anybody done this before ???

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Which one? Rhino or SpiderMonkey? Rhino is easy to integrate into a Cocoa/Java application (as the interpreter is in Java)… I have no experience with SpiderMonkey (the C/C++ implementation), but if you are just arbitrarily picking a JavaScript engine, have you considered WebKit’s support?

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I intended to embed SpiderMonkey. but what are the advatages of Rhino in in there relation to Cocoa???? - SimonAndreasMenke

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I’ve embedded JS SpiderMonkey in my app using : http://www.opengroupware.org/cvsweb/cvsweb.cgi/OpenGroupware.org/SOPE/skyrix-sope/NGJavaScript/

really cool stuff…

see also topics like WebKit and JavaScriptCore