Brandon Ha brandonvanha

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.)

git clone --bare [email protected]:usi-systems/easytrace.git

Vanilla JavaScript Quick Reference / Cheatsheet

Just migrated it from Codepen.io to markdown. Credit goes to David Conner.

Working with DOM	Working with JS	Working With Functions
Accessing Dom Elements	Add/Remove Array Item	Add Default Arguments to Function
Grab Children/Parent Node(s)	Add/Remove Object Properties	Throttle/Debounce Functions
Create DOM Elements	Conditionals

Ruby on Rails Cheatsheet

Architecture

Create a new application

Install the Rails gem if you haven't done so before

MailChimp's default popup scripts can break on WordPress sites that use jQuery/jQuery UI unless you include their embed code as the final elements before the closing body tag.

Including them in this way isn't always possible or easy with WordPress.

The code below is an alternative implementation of the loader that forces MailChimp's popup scripts to appear below all other scripts upon page load.

To use it, modify the baseUrl, uuid, and lid attributes with the ones from the original popup script that MailChimp supplies.

The Ultimate Unit Testing Cheat-sheet

Sinon Chai
Chai
Sinon

	ruby '2.7.1'

	gem 'rails', github: 'rails/rails'
	gem 'tzinfo-data', '>= 1.2016.7' # Don't rely on OSX/Linux timezone data

	# Action Text
	gem 'actiontext', github: 'basecamp/actiontext', ref: 'okra'
	gem 'okra', github: 'basecamp/okra'

	# Drivers

	# list pid, execution time, and query text for running queries
	def pg_ps
	now = Time.now
	ActiveRecord::Base.connection.execute("SELECT pid, query, query_start FROM pg_stat_activity WHERE state='active'").to_a.each do \|q\|
	printf "%8d %10.2f %s\n", q['pid'], now - DateTime.parse(q['query_start']), q['query']
	end
	nil
	end

	# cancel the current query for the given process

	/*
	Template literals for-loop example
	Using `Array(5).join(0).split(0)`, we create an empty array
	with 5 items which we can iterate through using `.map()`
	*/

	var element = document.createElement('div')
	element.innerHTML = `
	<h1>This element is looping</h1>
	${Array(5).join(0).split(0).map((item, i) => `

	# Find all the available rules by running:
	# swiftlint rules

	disabled_rules: # rule identifiers to exclude from running
	# - colon
	# - comma
	- control_statement
	# - trailing_whitespace
	opt_in_rules: # some rules are only opt-in
	- empty_count

	AllCops:
	RunRailsCops: true

	# Commonly used screens these days easily fit more than 80 characters.
	Metrics/LineLength:
	Max: 120

	# Too short methods lead to extraction of single-use methods, which can make
	# the code easier to read (by naming things), but can also clutter the class
	Metrics/MethodLength: