JavaScript Array reverse() Method

Below is the example of Array reverse() method.

  • Example:
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    <script>
    function func() {
      
        // Original Array
        var arr = ['Portal', 'Science', 
                   'Computer', 'GeeksforGeeks'];
        document.write(arr);
      
        // Reversed array
        var new_arr = arr.reverse();
        document.write("<br>");
        document.write(new_arr);
    }
    func();
    </script>                   

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  • Output:

    Portal,Science,Computer,GeeksforGeeks
GeeksforGeeks,Computer,Science,Portal
    

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The arr.reverse() method is used for in-place reversal of the array. The first element of the array becomes the last element and vice versa. 


Syntax:


arr.reverse()


Parameters: This method does not accept any parameter


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




Below examples illustrate the JavaScript Array reverse() method:


    

  • Example 1: In this example the reverse() method reverses the sequence of the array elements of arr.

    var arr = [34, 234, 567, 4];
print(arr);
var new_arr = arr.reverse();
print(new_arr);

    

    Output:
    

    34, 234, 567, 4
4, 567, 234, 34

    

    • 



Code for the above method is provided below:

Program 1:











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<script> 


function func() { 


  


    // Original Array 


    var arr = [34, 234, 567, 4]; 


    document.write(arr); 


  


    // Reversed array 


    var new_arr = arr.reverse(); 


    document.write("<br>"); 


    document.write(new_arr); 


} 


func(); 


</script> 



















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Output:


34, 234, 567, 4
4, 567, 234, 34


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


    

  • Google Chrome 1.0
    • 

  • Microsoft Edge 5.5
    • 

  • Mozilla Firefox 1.0
    • 

  • Safari
    • 

  • Opera
    • 



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