title: Make A Button In JavaScript file
body: <p>When I made a chrome extension I made a JavaScript file (.js) &amp; html file, and in the html file I called the .js file through this line :</p>
  
  <pre><code>&lt;script src='history.js'&gt;&lt;/script&gt;
  </code></pre>
  
  <p>But I want to make a button in the JavaScript file not in the html</p>