What Are Fragments in React?

Fragments are a feature in React that allow you to group a list of children without adding extra nodes to the DOM. They're typically preferred over container divs for a few reasons:

1. Efficiency: Fragments are a bit faster and use less memory by not creating an extra DOM node. While this might not make a noticeable difference in smaller applications, it can be beneficial in very large and deep component trees.
2. Maintain layout integrity: CSS mechanisms like Flexbox and CSS Grid often rely on specific parent-child relationships for layout. Adding unnecessary divs in the middle can disrupt these relationships and make it harder to achieve the desired layout.
3. Cleaner DOM: Using fragments can lead to a less cluttered DOM Inspector, making it easier to navigate and debug your application. By avoiding unnecessary wrapper divs, you keep your DOM structure cleaner and more semantic.

import React from "react";

function MyComponent() {
  return (
    // Using a fragment here avoids adding an extra DOM element.
    // If a <div> were used instead, it would introduce unnecessary
    // nesting in the DOM.
    <>
      <h1>Hello</h1>
      <p>This is a paragraph.</p>
    </>
  );
}

export default MyComponent;