[1] [CITE[''''''[''''''webkit-dev'''''']'''''' Differences between Nitro and Squirrelfish.]]
( ([TIME[2009-02-28 15:41:48 +09:00]] 版))
<https://lists.webkit.org/pipermail/webkit-dev/2009-February/006807.html>

[2] [CITE@ja[Nitro - Wikipedia]]
( ([TIME[2010-08-30 17:59:33 +09:00]] 版))
<http://ja.wikipedia.org/wiki/Nitro>

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[3] [CITE@en[Safari 4.0]]
([TIME[2015-11-04 22:46:41 +09:00]] 版)
<https://developer.apple.com/library/safari/releasenotes/General/WhatsNewInSafari/Articles/Safari_4_0.html#//apple_ref/doc/uid/TP40014305-CH4-SW2>
]FIGCAPTION]

> WebKit’s JavaScript engine, JavaScriptCore, features a new interpreter, code-named Nitro, which takes advantage of some of the latest research in the field of efficient virtual machines and is much faster than its predecessor.
> 

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