screenfull.js

Automatically handles vendor prefixes (webkit, moz) and implementation differences, eliminating the need to write verbose compatibility code, as shown in the vanilla JavaScript comparison.

At only 0.7 kB gzipped with zero dependencies, it adds negligible overhead, making it ideal for performance-sensitive web applications.

All asynchronous methods like request() and exit() return promises, enabling clean async/await usage and simplifying error handling in modern JavaScript.

Provides intuitive .on() and .off() methods for listening to fullscreen change and error events, reducing boilerplate code compared to raw event listeners.