Wrong. <a href="https:&#x2F;&#x2F;www.bignerdranch.com&#x2F;blog&#x2F;javascriptcore-example&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.bignerdranch.com&#x2F;blog&#x2F;javascriptcore-example&#x2F;</a> JavaScriptCore is what Apple uses for built in JS evaluation, and V8 can&#x27;t be implemented due to lack of execution of code from user-writable memory. JSC most definitely does not have the &quot;most advanced available JIT.&quot;