How to use JavaScript Dom Node hasChildNodes
In this article I have described about Dom Node hasChildNodes() method in JavaScript.
JavaScript Dom Node hasChildNodes() method
- As we already know that node object is used to represent and add node within the HTML document.
- The hasChildNodes() method checks whether any node has any child node or not and return boolean value.
- It returns true if there is any child node otherwise false.
Browser support
Following are the main browsers which support the hasChildNodes() method of Dom Node object
- Internet Explorer.
- Firefox.
- Opera.
- Google Chrome.
- Safari.
Syntax
The hasChildNodes() of Dom Node object has following syntax
node.hasChildNodes()
Lets take an example
|
<!DOCTYPE html>
<html>
<body>
<p id="menu">Display Color</p>
<button onclick="myFunction()">Try it</button>
<script type="text/javascript">
Boolean.prototype.Blcolor = function () {
if (this.valueOf() == true) {
this.color = "YELLOW";
}
else
{
this.color = "RED";
}
}
function myFunction() {
var a = new Boolean(1);
a.Blcolor();
var x = document.getElementById("menu");
x.innerHTML = a.color;
}
</script>
</body>
</html>
|
Output
When we click on button
Further Readings
You may also want to read these related articles :here
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