-
-
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.
A big poster child of functional style in JS-land is actually implemented on top of textbook OOP (Array.prototype.map/filter). For anyone interested in the gore details of functional polymorphism, look no further than the comparison between fantasy land and static land. Basically, it boils down to a simple fact: functional algebra constructs can be implemented in terms of other functional algebra constructs, but when push comes to shove, the most efficient Array map implementation is not going to be the same thing as a map implementation for any other data structure (Stream, Optional, whatever) and you can't have a magical compiler optimize under the hood for you in Javascript, because well, Javascript. So functional polymorphism has to be shoved somewhere, and as it turns out OOP happens to be a good complement for that conundrum.