Arthur Mwai trAve3113r

This is a crash course in JavaScript. It is intended for people who already have a bit of programming experience in other languages.

This will hopefully give a basic idea of the most-commonly-used language features, but it is not indended to be a comprehensive guide.

This guide was last updated in August 2016.

Basic syntax

To declare a variable called foo:

A "Best of the Best Practices" (BOBP) guide to developing in Python.

	import requests
	from bs4 import BeautifulSoup

	headers = {
	'user-agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'
	}

	login_data = {
	'name': '<username>',
	'pass': '<password>',

	#!/usr/bin/env python
	# coding=utf-8

	import json
	import threading

	from autobahn.twisted.websocket import WebSocketClientFactory, \
	WebSocketClientProtocol, \
	connectWS
	from twisted.internet import reactor, ssl

	def strictly_increasing(L):
	"""Returns TRUE if the values in the list are strictly increasing
	Always increasing; never remaining constant or decreasing or null.
	"""
	return all(x<y for x, y in zip(L, L[1:]))


	def strictly_decreasing(L):
	"""Returns TRUE if the values in the list are strictly decreasing
	Always decreasing; never remaining constant or increasing or null.

	/* Useful celery config.

	app = Celery('tasks',
	broker='redis://localhost:6379',
	backend='redis://localhost:6379')

	app.conf.update(
	CELERY_TASK_RESULT_EXPIRES=3600,
	CELERY_QUEUES=(
	Queue('default', routing_key='tasks.#'),

	#!/bin/bash
	#
	# Use RabbitMQ admin plugin to monitor backed up queues. If `THRESHOLD` is
	# exceeded, an error list will be served at 127.0.0.1:1334/overage.txt. If
	# all queues are below the threshold, requests for the overage file should
	# expect a 404.

	# API host, user, and password
	HOST=127.0.0.1:15672
	USER=admin

	[supervisord]
	nodaemon=true
	loglevel=debug

	[program:amon]
	command=gunicorn -c gunicorn.conf.py wsgi
	directory=/amon
	autostart=true
	autorestart=true
	redirect_stderr=true

	from shutil import make_archive
	from django.core.servers.basehttp import FileWrapper
	def download(request,file_name=""):
	"""
	A django view to zip files in directory and send it as downloadable response to the browser.
	Args:
	@request: Django request object
	@file_name: Name of the directory to be zipped
	Returns:
	A downloadable Http response

	<!DOCTYPE html>
	<html lang="en"> <!-- Set this to the main language of your site -->
	<head>
	<meta charset="utf-8">
	<title>HTML5</title>
	<!-- Enter a brief description of your page -->
	<meta name="description" content="">
	<!-- Define a viewport to mobile devices to use - telling the browser to assume that the page is as wide as the device (width=device-width) and setting the initial page zoom level to be 1 (initial-scale=1.0) -->
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<!-- Add normalize.css which enables browsers to render all elements more consistently and in line with modern standards as it only targets particular styles that need normalizing -->