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But Sun and Oracle have not demanded other users of Javascript obtain licenses.

• pluma 12y ago
  True, but for a long time the only noteworthy "other user" was Microsoft and they kept calling it JScript for years even after they adopted the standard. I'm not sure what exactly happened, but at some time after or during the lifetime of IE9 they stopped referring to their dialect of ECMAScript as "JScript" and began calling it "JavaScript". The most recent stuff I can find about JScript is about JScript.NET, which seems to be discontinued. There's this issue filed on the Mozilla project back in 2000 that addresses this problem: https://bugzilla.mozilla.org/show_bug.cgi?id=44841 https://bugzilla.mozilla.org/show_bug.cgi?id=44841 As Google, Apple and Microsoft are openly using the JavaScript trademark (without marking it as a trademark) these days, I'm going to go out on a limb here and guess that it's okay to use the term "JavaScript" to refer to an ECMAScript implementation that is compatible with the original JavaScript language developed by Netscape. This would probably preclude Adobe's ActionScript and other "enhanced" flavours of ES (e.g. JSX? I've never seen Facebook refer to JSX as "JavaScript <something>" in a way that would imply JSX is simply JavaScript).