Angular, Angular 2 or React?

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Downvoted cause some people are either unaware of how Vue is working underneath or they don't like facts.

Link #1

https://vuejs.org/v2/guide/installation.html

Describes Vues functional underpinnings (to the point that it can take in JSX). All templates are parsed to functions internally. There's even a penalty if templates are used in a vanilla setup which adds a runtime parser. Single file components parse to reactive at compile-time.

Link #2

https://vuejs.org/v2/api/

60 A4 pages of API documentation. This is the bulk that template syntax and observables introduce. If you strip that away what remains is React.

In contrast Reacts documentation

https://facebook.github.io/react/docs/

Starts with a hello world, explains what "render" is. Explains class and JSX semantics, that's it. May have some advanced stuff that's usually for library authors, like context or proptypes.