sorting json object based on attribute

Question

I have json object array containing firstname, lastname and age. I want to sort array based on age.

<!DOCTYPE html>
<html>
<body>
  <h2>Create Object from JSON String</h2>
  <p>Original name: <span id="origname"></span></p>
  <p>New name: <span id="newname"></span></p>
  <p>Age: <span id="age"></span></p>

  <script>
    var employees = [
      { "firstName" : "John" , "lastName" : "Doe" , "age":"24" }, 
      { "firstName" : "Anna" , "lastName" : "Smith" , "age":"30" }, 
      { "firstName" : "Peter" , "lastName" : "Jones" , "age":"45" }, 
    ];

    document.getElementById("origname").innerHTML=employees[0].firstName + " " + employees[0].lastName;

    // Set new name
    employees[0].firstName="Gilbert";
    document.getElementById("newname").innerHTML=employees[0].firstName + " " + employees[0].lastName;

    document.getElementById("age").innerHTML=employees[0].age;
  </script>
</body>
</html>

Maybe this answer can will help you stackoverflow.com/questions/881510/… — Liauchuk Ivan
– Liauchuk Ivan, Commented Jan 15, 2014 at 7:17
developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — Prinzhorn
– Prinzhorn, Commented Jan 15, 2014 at 7:20
You don't have a JSON object array. It is just an object array. JSON is a string representation of the object. They look a lot alike but they are not the same. You can make this into JSON with JSON.stringify(employees);. — DutGRIFF
– DutGRIFF, Commented Jan 15, 2014 at 7:27

tr05t · Accepted Answer · 2023-02-10 04:01:18Z

23

var employees = [{
    "firstName": "Anna",
    "lastName": "Smith",
    "age": "30"
  },
  {
    "firstName": "John",
    "lastName": "Doe",
    "age": "24"
  },
  {
    "firstName": "Peter",
    "lastName": "Jones",
    "age": "45"
  }
];

function sortByKey(array, key) {
  return array.sort(function(a, b) {
    var x = a[key];
    var y = b[key];
    return ((x < y) ? -1 : ((x > y) ? 1 : 0));
  });
}

people = sortByKey(employees, 'age');

console.log(people);

edited Feb 10, 2023 at 4:01

tr05t

631 silver badge10 bronze badges

answered Jan 15, 2014 at 7:28

Liju

7251 gold badge7 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Keegan Teetaert Over a year ago

I love this solution. However, is there a way to make it access a 'grandchild' attribute of the object? For example sortByKey(myArr, 'myList.myElement')

josefdev Over a year ago

Could someone explain the logic?

Collectives™ on Stack Overflow

sorting json object based on attribute

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related