Creating and Adding Elements

You can create brand new elements with JavaScript and add them to the page dynamically. This is how single-page apps and interactive features work.

The main steps: create the element, configure it (text, attributes, classes), then insert it into the DOM.

Creating an Element

Use document.createElement(tagName).

Appending Elements

Use appendChild (add to end), prepend (add to beginning), or insertBefore.

Creating Multiple Elements

Loop to create many, or use innerHTML for quick markup.

Using innerHTML to Add Markup

Quick way to insert HTML strings (be careful with user input).

Removing Elements

Use remove() or parent.removeChild(child).

Quick Quiz