Sort arr[ { ... } ]

var OrderPeople = function(people){
  return people.sort( (a,b) => a.age - b.age );
}

OrderPeople([ { age: 83, name: 'joel' },
{ age: 46, name: 'roger' },
{ age: 99, name: 'vinny' },
{ age: 26, name: 'don' },
{ age: 74, name: 'brendan' } ]), [{age:26,name:"don"},{age:46,name:"roger"},{age:74,name:"brendan"},{age:83,name:"joel"},{age:99,name:"vinny"}], 'The array is still empty')
  });