Which option is an example of an open-source UI toolkit?

Which option is an example of an open-source UI toolkit?

• A. Kendo UI
• B. Foundation library
• C. Bootstrap
• D. React

Answer: (B)

Open-source UI toolkits are collections of UI components with their source code available for free use, modification, and redistribution. The Foundation library fits this: it’s a front-end framework that provides a wide range of UI components and styles, released under an open-source license, so you can use and customize it in projects. This openness and the ready-to-use component set are what make it a strong example of an open-source UI toolkit. (Kendo UI is mainly a commercial product, React is a UI library rather than a full toolkit, and Bootstrap is also open-source but is a different example of the same concept.)

Open-source UI toolkits are collections of UI components with their source code available for free use, modification, and redistribution. The Foundation library fits this: it’s a front-end framework that provides a wide range of UI components and styles, released under an open-source license, so you can use and customize it in projects. This openness and the ready-to-use component set are what make it a strong example of an open-source UI toolkit. (Kendo UI is mainly a commercial product, React is a UI library rather than a full toolkit, and Bootstrap is also open-source but is a different example of the same concept.)