KnockoutJS - sort() Method

Description

The KnockoutJS Observable sort() method sorts all items in the array.

By default, items are sorted in an ascending order. For sorting an array in a descending order, use reverse() method on sorted array.

Syntax

arrayName.sort()

Parameters

Does not accept any parameter.

Example

Live Demo

<!DOCTYPE html>
   <head>
      <title>KnockoutJS ObservableArray sort method</title>
      <script src = "https://ajax.aspnetcdn.com/ajax/knockout/knockout-3.1.0.js"
         type = "text/javascript"></script>
   </head>

   <body>
      <p>Example to demonstrate sort() method.</p>
      <button data-bind = "click: sortEmp">Sort Array</button>
      <p>Array of employees: <span data-bind = "text: empArray()" ></span></p>

      <script>
         function EmployeeModel() {
            this.empName = ko.observable("");
            this.chosenItem = ko.observableArray("");
            this.empArray = ko.observableArray(['Scott','James','Jordan','Lee',
               'RoseMary','Kathie']);

            this.sortEmp = function() {
               this.empArray.sort();  //sort array
            }
         }
      
         var em = new EmployeeModel();
         ko.applyBindings(em);
      </script>
      
   </body>
</html>

Output

Let's carry out the following steps to see how the above code works −

Save the above code in array-sort.htm file.
Open this HTML file in a browser.
Click the Sort Array button and see that the array is sorted.

knockoutjs_observables.htm