Below is the example of Array sort() method.

• Program 1:
  
  

  
  
  

  <script> // JavaScript to illustrate sort() function function func() {        // Original string     var arr = ["Geeks", "for", "Geeks"]        document.write(arr);     document.write("<br>");     // Sorting the array     document.write(arr.sort()); } func(); </script>

• Output:

  Geeks,for,Geeks
  Geeks,Geeks,for
  

The arr.sort() method is used to sort the array in place in a given order according to the compare() function. If the method is omitted then the array is sorted in ascending order.
Syntax:

arr.sort(compareFunction)

Parameters: This method accept a single parameter as mentioned above and described below:

• compareFunction: This parameters is used to sort the elements according to different attributes and in the different order.
  • compareFunction(a,b) < 0

  Then a comes before b in the answer.

  • compareFunction(a,b) > 0

  Then b comes before a in the answer.

  
  
  
  
  • compareFunction(a,b) = 0

  Then the order of a and b remains unchanged.

Return value: This method returns the reference of the sorted original array.

Below examples illustrate the JavaScript Array sort() method:

var arr = [2, 5, 8, 1, 4]
document.write(arr.sort());
document.write(arr);

1,2,4,5,8
1,2,4,5,8

var arr = [2, 5, 8, 1, 4]
document.write(arr.sort(function(a, b) {
  return a + 2 * b;
}));
document.write(arr);

2,5,8,1,4
2,5,8,1,4

Code for the above method is provided below:
Program 1:

Output:

1,2,4,5,8
1,2,4,5,8

Program 2:

Output:

4,1,8,5,2
4,1,8,5,2

Supported Browsers: The browsers supported by JavaScript Array sort() method are listed below:

• Google Chrome 1 and above
• Edge 12 and above
• Firefox 1 and above
• Internet Explorer 5.5 and above
• Opera 4 and above
• Safari 1 and above