How to do comment-switching on a single line

ninjaCommentSwitch.js

/*
  This switch is used for development, when I want to be able to run the server without the extra services running.
  
  prefilledArray is an array of objects that is a sample of what the extra services return.
  
*/

// In no-services dev mode
var data = /**[];//**/prefilledArray;

// Otherwise
var data = /**/[];//**/prefilledArray;

// The difference is a single slash...
// ...here:   v
var data = /**[];//**/prefilledArray;