What Web Framework do you recommend?

How do relation on invoice database?

Hi, I'm design a database schema, for my invoice system, and i have a doubt: I want have, invoice and estimate, but i dont know if use one table and inside the table, a value with different types or create a two tables, one for invoice and other for...

Can someone give an example on how to mimic MobX, just using Vanilla JavaScript?

QUESTION UPDATED! I have begun to learn the flux architecture, reading about which, I have found Mobx, whose idea is good. But before starting with the library, I want to see a simple example in Vanilla Javascript of MobX things like "observable", "c...

What do you recommend for an internal API?

I have reduced it to two options. If you have any other say it. Thanks