Hollywood Principle

Write code to respond to external events, such as from an existing framework

Dependency Inversion Principle

high level modules should not depend on low level modules; both should depend on abstractions.

Explicit Dependencies Principle

Methods and classes should explicitly require any collaborating objects they need in order to function correctly

Single-Responsibility Principle

Every module, class or function in a computer program should have responsibility over a single part of that program's functionality, and it should encapsulate that part

Keep It Simple Stupid (KISS)

A simple solution is better than a complex one.

Use default arguments instead of short circuiting or conditionals

Functions should do one thing

Don't add unneeded context

Don't add the class/object names to properties

Function names should say what they do

Function arguments, ideally use 2 or fewer