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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Compared to Svelte, React has a huge community and you can easily find a solution to any problem. As a React developer, I really like Svelte as well. However, I've only found Svelte useful in lightweight simple projects. I like Svelte API and reactivity out of the box, but for all its advantages, the ecosystem around svelte is lacking compared to react. To speed up development in a more complicated web app we need tools/libraries like svelte kit, svelte-query, svelte-yup etc., but these are not mature enough yet. Hopefully, Svelte's ecosystem will get better as more people start using it.
Although I knew the React class component well, it almost took a week to understand all the nuances of hooks like the why, where and how to use it effectively. This blog will help you to learn more about the underlying hooks system.