HTML DOM nodeValue Property

The HTML DOM nodeValue property returns/sets a string corresponding to the value of the node.

Following is the syntax −

Returning string value

Node.nodeValue

Here, the return value can be the following −

Value as ‘null’ for document nodes & element nodes
Value as ‘value’ of the attribute for attribute nodes
Value as content for text nodes and comment nodes

Set nodeValue to a string value

Node.nodeValue = string

NOTE: Whitespaces are considered as text nodes only.

Let us see an example of HTML DOM nodeValue property −

Example

<!DOCTYPE html>
<html>
<head>
<title>HTML DOM nodeValue</title>
<style>
   form {
      width:70%;
      margin: 0 auto;
      text-align: center;
   }
   * {
      padding: 2px;
      margin:5px;
   }
   input[type="button"] {
      border-radius: 10px;
   }
   ul{
      width: 30%;
      margin: 0 auto;
   }
</style>
</head>
<body>
   <form>
      <fieldset>
         <legend>HTML-DOM-nodeValue</legend>
         <h3>Students</h3>
         <ul>
            <li>Adam</li>
            <li>Alex</li>
            <li>Bina</li>
            <li>Eden</li>
            <li>Rajesh</li>
            <li>Zampa</li>
         </ul>
         <input type="button" onclick="checkForBina()" value="Confirm for Bina">
         <div id="divDisplay"></div>
      </fieldset>
   </form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var studentList = document.getElementsByTagName("li");
   var status = 'not Present';
   function checkForBina() {
      for(var i=0; i<studentList.length; i++){
         if(studentList[i].childNodes[0].nodeValue === 'Bina')
            status = 'Present';
         }
         divDisplay.textContent = 'Bina is '+status;
   }
</script>
</body>
</html>

Output

Before clicking ‘Confirm for Bina’ button −

HTML DOM nodeValue Property

After clicking ‘Confirm for Bina’ button −

HTML DOM nodeValue Property