JavaScript: Array sort using object key:values

array_object_sort.js

[
    { name: "Robin", age: 30 },
    { name: "Theo", age: 24 },
    { name: "Bacary", age: 28  }
].sort(function(obj1, obj2) {
    // Ascending: first age less than the previous
    return obj1.age - obj2.age;
});

// Returns:  
// [
//    { name: "Theo", age: 24 },
//    { name: "Bacary", age: 28  },
//    { name: "Robin", age: 30 }
// ]