title: Warning of mutating the [[prototype]] of an object in d3.js?
body: <p>I am working with d3.js for Data visualization. I am getting the warning shown in the following image.<img src="https://i.stack.imgur.com/r5qVD.jpg" alt="enter image description here"> Does anyone have the  idea why is this happening and how can I solve this? The message shown in the error is following</p>
  
  <pre><code>mutating the [[Prototype]] of an object will cause your code to run very slowly; instead create the object with the correct initial [[Prototype]] value using Object.create
  </code></pre>