Object with private property. Object with function property. Object with function property without parenthesis.

Object with private and autoFunction properties.js

var example = ( function() {
  var private = 0;
  
  var fnIncrement = function() {
    return ++private;
  }

  var returned = { fnIncrement: fnIncrement };

  Object.defineProperty( returned, 'autoIncrement', { get: fnIncrement } );

  return returned;
} )();

example.fnIncrement() // 1
example.autoIncrement // 2