title: How disable a js file in javascript code?
body: <p>I do several similar things in several Js files. I want to deactivate some js files and enable others in another file within a conditional statement.
  How can I do this?</p>
  <p>for example:</p>
  <pre><code>// My files: | javascript_1.js | - |  javascript_2.js |
  
  if( flag == true ){
  // disable javascript_1.js
  }
  else{
  // enable javascript_2.js
  }
  </code></pre>