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Cheat Sheets are greate but they are not a substitute for learning the framework and reading the documentation as we most certainly have not covered every potential example here. Please refer to the Rails Command Line Docs for more information.

Command Line Generator Info

Reference

You can get all of this information on the command line.

rails generate with no generator name will output a list of all available generators and some information about global options. rails generate GENERATOR --help will list the options that can be passed to the specified generator.

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Capybara Actions

# Anchor
click_link 'Save'

# Button
click_button 'awesome'

# Both above

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<?php

/* From https://www.usps.com/send/official-abbreviations.htm */

$us_state_abbrevs_names = array(
	'AL'=>'ALABAMA',
	'AK'=>'ALASKA',
	'AS'=>'AMERICAN SAMOA',
	'AZ'=>'ARIZONA',
	'AR'=>'ARKANSAS',

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Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

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Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

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require 'sinatra'
require 'action_mailer'

class Mailer < ActionMailer::Base
  def contact
    mail(
      :to      => "test@example.com",
      :from    => "test@example.com",
      :subject => "Test") do |format|
        format.text

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#!/usr/bin/env bash

echo "Checking for SSH key, generating one if it exists ..."
  [[ -f ~/.ssh/id_rsa.pub ]] || ssh-keygen -t rsa

echo "Copying public key to clipboard. Paste it into your Github account ..."
  [[ -f ~/.ssh/id_rsa.pub ]] && cat ~/.ssh/id_rsa.pub | xclip
  open https://github.com/account/ssh

echo "Using yum to install OS packages so let's update it first ..."

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#include <Adafruit_NeoPixel.h>

// Pin used on Arduino board
#define PIN 2
// Number of NeoPixels
#define PIXELS 24
// Number of pixels on either side continuously orange to indicate side of vehicle
#define FIXEDPIXELS 1

// Parameter 1 = number of pixels in strip

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require 'rails_helper'

RSpec.describe TodosController, :type => :controller do

  context "GET index" do
  #context "POST create" do
  #context "GET show" do
  #context "PATCH update" do (or PUT update)
  #context "DELETE destroy" do
  #context "GET new" do