Marvin Kweyu MarvinKweyu

Easier is not Always Better in Engineering (Client Side and Server Side Alike) ⚠️

by Antwan Wimberly

26 August, 2019

A Note to Junior Developers

It is wishful thinking to assume that just because an application is "easier to write" that it is more maintanable and will result in a stable product being deployed to production. The overall architecture, maintainability, stability, and testability of a given library or framework should always be taken into account.

For example, you're building a new large scale web application. You could ⚠️ take a more native approach like document.getElementById and routine DOM manipulation. In my experience however, leveraging a more structured framework like Marionette is an objectively better choice for building large scale applications in contrast to traditional DOM API. The same can be said when comparing [`j

Conventional Commit Messages

See how a minor change to your commit message style can make a difference.

Tip

Have a look at git-conventional-commits , a CLI util to ensure these conventions, determine version and generate changelogs

Commit Message Formats

Default

No, you are not allowed to change the copyright notice. Indeed, the license text states pretty clearly:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

But you are allowed to add a copyright notice.

If you want to keep the MIT license, which is what I would advise you to do, you only need to add a single line to the license file, before or after Copyright (c) 2012 Some Name with your own copyright notice. The final LICENSE file will look like this:

The MIT License (MIT)

Django Deployment to Ubuntu 18.04

In this guide I will go through all the steps to create a VPS, secure it and deploy a Django application. This is a summarized document from this digital ocean doc

Any commands with "$" at the beginning run on your local machine and any "#" run when logged into the server

Create A Digital Ocean Droplet

Use this link and get $10 free. Just select the $5 plan unless this a production app.

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

Looks way better rendered at nbviewer than here.

	/**
	*
	* It is a fact that there exist two numbers x and y such that x! + y! = 10!.
	* Write a method named solve10 that returns the values x and y in an array.
	* The notation n! is called n factorial and is equal to n * n-1 * n-2 * … 2 * 1, e.g., 5! = 54321 = 120.
	*
	*/

	package com.hawa.practice;

	import multiprocessing
	import threading
	import time

	def thread_runner(val):
	while True:
	print("thread ", val)


	num_cpus = multiprocessing.cpu_count()

	import sys
	import pymysql
	import logging


	class Database:
	"""Database connection class."""

	def __init__(self, config):
	self.host = config.db_host

	import logging
	import sys
	from logging.handlers import TimedRotatingFileHandler

	FORMATTER = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
	LOG_FILE = "my_app.log"

	def get_console_handler():
	console_handler = logging.StreamHandler(sys.stdout)
	console_handler.setFormatter(FORMATTER)