title: How to get javascript functions native code
body: <p>Is there any way to see the native code of javascript build-in functions in browser console so I can Know the algorithm efficiency of the function and how it actually works</p>
  
  <p><a href="https://i.stack.imgur.com/A1zOb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/A1zOb.png" alt="enter image description here"></a></p>