NestJS vs PurpleJS: What are the differences?
What is NestJS? A progressive Node.js framework for building efficient and scalable server-side applications by @kammysliwiec. Nest is a framework for building efficient, scalable Node.js server-side applications. It uses progressive JavaScript, is built with TypeScript (preserves compatibility with pure JavaScript) and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming)
Under the hood, Nest makes use of Express, but also, provides compatibility with a wide range of other libraries, like e.g. Fastify, allowing for easy use of the myriad third-party plugins which are available..
What is PurpleJS? An alternative to Node.js for Java projects. PurpleJS is a simple and capable framework for creating performant web applications without leaving Javascript. It is created in Java to give the flexibility and performance Java provides. It's optional to use Java but it's required if you need to embed PurpleJS in existing applications.
NestJS and PurpleJS belong to "Frameworks (Full Stack)" category of the tech stack.
NestJS and PurpleJS are both open source tools. It seems that NestJS with 17.4K GitHub stars and 1.22K forks on GitHub has more adoption than PurpleJS with 408 GitHub stars and 19 GitHub forks.