How to get a notification when an element is added to the page using JavaScript ?
Last Updated :
12 May, 2021
To show a notification when an element is added to page we can use createElement() method creates an element list with the specified name. After that, we will create a text node by createTextNode() method.Then we will append the new element in that list and use the alert() function to show a notification to the user.
Below example illustrate the approach:
Example: In this example, we already have a list so we want another element in that list, but when we want to add an element in that list, we will show a notification alert when we click the button to add an element in that list.
HTML
<!DOCTYPE html>
< html >
< head >
< script >
function add() {
// Add li element
var node = document
.createElement("li");
// Add element into the list
var textnode = document
.createTextNode("JS");
// Append the element into the list
node.appendChild(textnode);
document.getElementById("myList")
.appendChild(node);
// Alert message when element gets added
alert("Element is getting added") ;
}
</ script >
</ head >
< body >
< h1 style = "color: green;" >
GeeksforGeeks
</ h1 >
< b >
Click the button to append an item
to the end of the list.
</ b >
< ul id = "myList" >
< li >HTML</ li >
< li >CSS</ li >
</ ul >
< br >
< button onclick = "add()" >
Add Elements
</ button >
</ body >
</ html >
|
Output:
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