Polyfill is a technology that provides modern functionality to older, less advanced web browsers or environments, ensuring consistent and efficient user experience. Essentially, it is a fallback mechanism designed to fill in the gaps in browser compatibility by mimicking the API features of recent web standards. By using JavaScript code libraries or plugins, Polyfill identifies the browser's incapabilities and adapts accordingly, essentially "polyfilling" missing features. This technique enables developers to leverage the latest technologies without alienating users of older browsers, maintaining support, and ensuring a seamless integration of innovative web features.



jQuery UI is widely used by Java users who rely on the use of the jQuery JavaScript library. It is used to add additional features in web applications for increased interactability. It comes with different types of themes, effects and widgets. It is commonly used by developers and designers.

jQuery UI comes with a ‘getting started guide’. It also provides different tutorials and demos to help beginners. It comes with API documentation as well. It also has an active forum for its users. jQuery UI helps users create different drag-and-drop behaviours. It also provides different effect options along with widgets like Accordion, Autocomplete, Button, Datepicket, Slider and Tooltip.

Comparison Polyfill vs jQuery UI