Sort an Array of Objects by Property Using sort(fn)

sort-array.js

[
  { name: "Robin Van Persie", age: 28 },
  { name: "Theo Walcott", age: 22 },
  { name: "Bacary Sagna", age: 26  }
].sort(function(obj1, obj2) {
  // Ascending: first age greater than the previous
  return obj1.age - obj2.age;
});
  // Returns:  
  // [
  //    { name: "Theo Walcott", age: 22 },
  //    { name: "Bacary Sagna", age: 26  },
  //    { name: "Robin Van Persie", age: 28 }
  // ]
  // via http://davidwalsh.name/array-sort