sandbox-backend

This is a sandbox for testing node and express features.

create project folder then: npm init use npm run dev command to use nodemon to debug faster with hot reload.

non blocking: waiting for an external system to do something and return a callback (or promise) async & await: a syntactic sugar that takes the return value and automatically resolves it as a promise, and also sets up a context to use the await keyword which pauses the execution of a function, instead of chaining together a bunch of then callbacks

use CI/CD (jenkins?)

Testing are automated

using jest. npm run test These are unit tests. There is also integration test and user acceptance test (UAT, done by users).

functions should be small 3 arguments in a function should be avoided - ideally should be 0

comments are necessary evil: maybe expression of an intent, todo comments

moneyback guarantee three.js grid-template-columns: repeat(number, 1fr) use the global variable