paitonic

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

Conventions

A = [xA, yA] is a point on the 2D plane. Same for B, C, ...
lengths are in any unit (ex: pixels)
code snippets are in JavaScript

Degrees to radians

angleRad = angleDeg * Math.PI / 180;

Regular Event Loop

This shows the execution order given JavaScript's Call Stack, Event Loop, and any asynchronous APIs provided in the JS execution environment (in this example; Web APIs in a Browser environment)

Given the code

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

	"""
	Example of using sub-parser, sub-commands and sub-sub-commands :-)
	"""

	import argparse


	def main(args):
	"""
	Just do something

	// EmailInput wraps an HTML `input` and adds some app-specific styling.
	const EmailInput = React.forwardRef((props, ref) => (
	<input ref={ref} {...props} type="email" className="AppEmailInput" />
	));

	class App extends Component {
	emailRef = React.createRef();

	render() {
	return (

	#!/bin/bash
	sudo apt-get install apt-transport-https ca-certificates -y
	sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
	sudo rm -f /etc/apt/sources.list.d/docker.list
	sudo add-apt-repository \
	"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
	$(lsb_release -u -cs) \
	stable"
	sudo apt-get update
	sudo apt-get purge lxc-docker

	module Main exposing (..)

	import Html exposing (Html, div, hr, text)
	import Html.App as App
	import Navigation


	-- APP IMPORTS

	import FirstPage