HTML | DOM children Property

Last Updated : 25 Jul, 2019

The DOM children property is used to return HTMLcollection of all the child elements of the specified element. The elements in the collection can be accessed by index numbers. It differs from childNodes as childNodes contains all nodes (i.e. it includes text and comment nodes as well) but on the other hand, children contains only element nodes. This is a read-only property.

Syntax:

element.children

Return Value: It returns a collection of element nodes which can be accessed by indexing.

Example 1: This example returns the number of list items.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        HTML DOM children Property 
    </title> 
  
    <!-- Script to count children of parent attribute -->
    <script> 
        function Geeks() { 
            var count = 
                document.getElementById("parent").children.length; 
  
            document.getElementById("p").innerHTML =  
                  "No of Children: " + count; 
        } 
    </script> 
</head> 
  
<body> 
    <h1>GeeksforGeeks</h1> 
  
    <h2> 
            DOM children Property 
        </h2> 
  
    <p>Searching Algorithms</p> 
  
    <ul id="parent"> 
        <li>Merge sort</li> 
        <li>Quick sort</li> 
    </ul> 
  
    <button onclick="Geeks()"> 
        Click Here! 
    </button> 
  
    <p id="p"></p> 
</body> 
  
</html> 

Output:
Before click on the button:
children
After click on the button:

Example 2:

<!DOCTYPE html> 
<html> 
    <head> 
        <title> 
            HTML DOM children Property 
        </title> 
          
        <script> 
            function Geeks() { 
                var doc =  
                document.getElementById("parent").children; 
                  
                var i; 
                for(i = 0; i < doc.length; i++) { 
                    doc[i].style.color = "white"; 
                    doc[i].style.backgroundColor = "green"; 
                } 
            } 
        </script> 
    </head> 
      
    <body style = "text-align:center"> 
          
        <h1 style = "color:green;"> 
            GeeksforGeeks 
        </h1> 
          
        <h2> 
            DOM children Property 
        </h2> 
          
        <div id = "parent"> 
            <p> 
                A computer science portal for geeks. 
            </p> 
            <p> 
                Geeks classes an extensive programme for geeks. 
            </p> 
        </div> 
          
        <button onclick = "Geeks()">Click me!</button> 
    </body> 
</html>                     