Web pages are not fixed — elements can be created and removed dynamically using JavaScript.
This allows developers to build features like adding items to a list, showing notifications, creating cards, and removing elements when they are no longer needed.
Learning how to create and remove elements is essential for building dynamic and interactive web applications.
What You Can Do with DOM Elements
- Create new HTML elements
- Add them to the page
- Change their content
- Remove them when needed
- Build dynamic user interfaces
These actions make web pages truly interactive.
The createElement method creates a new HTML element, but it is not yet visible on the page.
To show it, you must add it to the DOM.
The appendChild method adds the new element to the end of the body.
Now the element becomes visible on the web page.
This example shows how JavaScript can remove an element from the page.
By mastering how to create and remove elements, students gain the ability to build dynamic interfaces such as to-do lists, notifications, and live content updates.