title: write "strict mode" it in one place to get it effect on all `.js` file code
body: <p>I have a <code>cshtml</code> page which have lot of <code>.js</code> file, I am testing my <code>.js</code> to run in <code>strict mode</code>. I have to write <code>"use strict"</code> on each <code>.js</code> file. Can I write it in one place to get it effect on all <code>.js</code> file code.<br>
  May be in <code>.cshtml</code>, But it does not work.</p>