Comments can cause inconsistent output

In a project I work on, there is a common stanza at the top of most files that has been implemented inconsistently. If there are comments, the prettier output is also inconsistent:

angular.module('foo').directive('bar', function() {});

angular
  .module('foo').directive('bar', function() {});

angular
  .module('foo')
  .directive('bar', function() {});

angular
  .module('foo')
  // the directive
  .directive('bar', function() {});


angular
  // the mod
  .module('foo')
  // the directive
  .directive('bar', function() {});

Output:

angular.module('foo').directive('bar', function() {});

angular.module('foo').directive('bar', function() {});

angular.module('foo').directive('bar', function() {});

angular.module('foo')// the directive
.directive('bar', function() {});

angular
  // the mod
  .module('foo')
  // the directive
  .directive('bar', function() {});

I probably would have expected consistently either of these:

angular.module('foo').directive('bar', function() {});
// or
angular
  .module('foo')
  .directive('bar', function() {});

[alekhurst]

I have a project where prettier consistently produces inconsistent output…

code looks like:

  ...
  /*eslint-enable */
}

and every time I run prettier, the format changes (adds and removes a newline)

[benjaminapetersen]

@vjeux the first and second versions are just there for reference, the 3rd and 4th illustrate how the comments alter the output.