title: How to declare character encoding in an INDIVIDUAL JS file?
body: <p>We can declare the character encoding in an INDIVIDUAL CSS file by codes below:</p>
  
  <p><code>@charset "UTF-8";</code></p>
  
  <p>My question is:</p>
  
  <p>How to declare character encoding in an INDIVIDUAL JS file?</p>
  
  <p>If I send a JS file to my friend, I hope he (she) can understand this JS file's character encoding from codes themselves when he (she) starts to browse or edit this JS file.</p>
  
  <p>Thank you!</p>