dmmeteo

"""
Single Responsibility Principle
“…You had one job” — Loki to Skurge in Thor: Ragnarok
A class should have only one job. 
If a class has more than one responsibility, it becomes coupled. 
A change to one responsibility results to modification of the other responsibility.
"""

class Animal:
    def __init__(self, name: str):

dmmeteo

drf-cheat-sheet

A collection of anything from basics to advanced recommended methods and usages with Django REST Framework for creating browsable and awesome web API's. This could also serve as a quick reference guide.

Here is DRF's official documentation in case you need everything in detail.

Why Django REST Framework?

Summarized from the official docs:

• Web browsable API
• Serialization that supports ORM and non-ORM data sources.

dmmeteo

Cheatsheet for Django QuerySets

Current Django Version: 2.2

Methods that return new QuerySets

Can be chained:

Entry.objects.filter(**kwargs).exclude(**kwargs).order_by(**kwargs)

wojteklu

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

mathewbyrne

function slugify(text)
{
  return text.toString().toLowerCase()
    .replace(/\s+/g, '-')           // Replace spaces with -
    .replace(/[^\w\-]+/g, '')       // Remove all non-word chars
    .replace(/\-\-+/g, '-')         // Replace multiple - with single -
    .replace(/^-+/, '')             // Trim - from start of text
    .replace(/-+$/, '');            // Trim - from end of text
}