javascript - Why does my msgbox always returning to true? -

why msgbox returning true??

<script type="text/javascript"> function deletesubj(x){     var conf = confirm("are sure want delete subject?"){          return true;     }     else{      return false; } }</script> 

check condition after:

var conf = confirm("are sure want delete subject?") if (conf) {     return true; } else {     return false; }