Classificando uma matriz de objetos em Javascript

http://www.javascriptkit.com/javatutors/arraysort2.shtml

var employees=[];
employees[0]={name:"George", age:32, retiredate:"March 12, 2014"};
employees[1]={name:"Edward", age:17, retiredate:"June 2, 2023"};
employees[2]={name:"Christine", age:58, retiredate:"December 20, 2036"};
employees[3]={name:"Sarah", age:62, retiredate:"April 30, 2020"};

employees.sort(function(a, b){
 var nameA=a.name.toLowerCase(), nameB=b.name.toLowerCase()
 if (nameA < nameB) //sort string ascending
  return -1;
 if (nameA > nameB)
  return 1;
 return 0; //default return value (no sorting)
});

employeesresulta em ordem crescente após a sortaplicação.