Makan Fof mf3129

Installing Postgres via Brew

Pre-Reqs

Brew Package Manager

In your command-line run the following commands:

brew doctor
brew update

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

Installing Node.js live-server

The NodeJS live-server package runs a temporary server displaying any HTML/CSS/JS resources in the current folder. It automatically reloads the page in your browser when any of these files change.

OS X

Verify that Node.js is installed. If you see anything when you run which npm in a terminal, it is. If not, follow the instructions at nodejs.org to install.
Install live-server: npm install -g live-server
Move your terminal to where your pages live: cd <path-to-content>
Start the server: live-server .

Rspec Cheat Sheet

# Equivalence
expect(target).to eq 1
expect(target).not_to eq 1

expect(user.id).to eq("foo")

expect(user).to be_a(FooApp::User)

	import os
	from os import listdir
	from os.path import isfile, join
	from argparse import ArgumentParser

	from plyfile import PlyData


	def parse_args():
	parser = ArgumentParser()

	using UnityEngine;
	using System;
	using System.Collections;
	using System.Collections.Generic;
	using System.IO;
	using System.Threading;

	class BitmapEncoder
	{
	public static void WriteBitmap(Stream stream, int width, int height, byte[] imageData)

	<!DOCTYPE html>
	<html>

	<head>
	<meta charset="utf-8">
	<title></title>
	<meta name="author" content="">
	<meta name="description" content="">
	<meta name="viewport" content="width=device-width, initial-scale=1">

	# Terminal Cheat Sheet

	pwd # print working directory
	ls # list files in directory
	cd # change directory
	~ # home directory
	.. # up one directory
	- # previous working directory
	help # get help
	-h # get help