title: The benefits of React-Native JavaScriptCore
body: <p>Definitely, all of us know about powerful <code>JavaScript</code> engine, So why in <code>React Native</code> is used a different engine that name is <code>JavaScriptCore</code>.</p>
  
  <p>The JavaScriptCore does not support some <code>ES6</code> features like below function:</p>
  
  <pre><code>Array.prototype.flatten
  </code></pre>
  
  <p>What is benefits of JavaScriptCore to V8? Why the Facebook developers didn't use V8?</p>