Edward Withers dearshrewdwit

Welcome to Makers!

If you have any questions, just ask!

Cohort Zoom

The cohort has its own zoom link that will always be available, and where we'll hang out together. You can find yours in the topic of your cohort's slack channel - right at the top.

We'll meet for Welcome to Makers Parts 1 & 2 on zoom for 6pm - see you there!

Part 1 (Monday)

Using plain old Ruby, make this work:

expect(1).to eq 1
expect(['hi', 'there'].length).to eq 2
expect('howdy!'.upcase).to eq 'HOWDY!'

Details

We have a new requirement!

Build a letter-letter substitution cipher.

Let's take this opportunity to refactor to take advantage of OOP's polymorphism. The public interface to all our ciphers should be methods #encrypt and #decrypt.

NB: Use character_set1 for the Letter Number cipher and character_set2 for the Letter Letter cipher
NB: Ciphers should assume a valid character set

	// --------------------------------------------------------------------------------
	// Headlines.test.js
	// --------------------------------------------------------------------------------

	import React from 'react'
	import { render, screen, waitForElement } from '@testing-library/react'

	import Headlines from './Headlines'
	import mockResponse from './__mocks__/guardian-response.json'

	// DiceRoll.js

	import React, { Component } from 'react'
	import Die from './Die'

	class DiceRoll extends Component {
	constructor(props) {
	super(props)
	this.state = {dice: [4,5,6]}
	}

	# -------------------------------------------------------
	#
	# spec/diary_spec.rb

	describe 'Diary' do
	it 'can add entry' do
	diary = Diary.new

	expect(diary.add('hello')).to eq :ok
	end

	# NB: this example uses a test-framework called m-spec
	# https://github.com/dearshrewdwit/m-spec
	# Follow along with the screen recording here: https://youtu.be/c5dg-LPQp2E

	# ---------------------------------------------------------------------------

	# ./lib/todo_list.rb

	require_relative "todo.rb"

	# CEO executes a method make_company_efficient. This delegates to COO's method find_company_savings.
	# The COO's method does a couple of things like sell_old_equipment and reduce_entertainment_budget.
	# It then calls HRManager's method reduce_payroll.
	# HRManager's method reduce_payroll iterates through employees and calls employee.fire if employee.performance < 7.
	# In this example, neither the CEO nor the COO are responsible for firing employees, and both have plausible deniability.
	# That responsibility has been delegated to the HR Manager, who will have to handle the angry letters herself.

	class Ceo
	def initialize(coo = Coo.new)
	@coo = coo

	class AssertionList
	# write a method #run that iterates through a list of assertions
	# and asks each one to run its #check method and then #puts the result.
	end

	class Equal
	def initialize(val1, val2)
	@val1 = val1
	@val2 = val2
	end

	character, value
	, m
	a, X
	b, p
	c, M
	d, *
	e, D
	f, 3
	g, £
	h, §