Ian Miller irmiller22

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I am irmiller22 (https://keybase.io/irmiller22) on keybase.
I have a public key ASBdnUCb8cI2VfxcL7see4tKrVU_8QnnIoBUm0F6nJhkcwo

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Data Structure Basics

Array

Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.
They are one of the oldest, most commonly used data structures.

What you need to know:

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.

This is in response to your question about initializing a new instance of a class, and correspondingly passing in parameters that are initialized with the class. Let's take an example below:

class Person
  def initialize(name)
    @name = name
  end
end

Form_for

Most magical form helper in rails
form_for is a ruby method into which a ruby object is passed
form_for yields a form builder object (typically f)
methods to create form controls are called on f, the form builder element
when the object is passed as a form_for parameter, it creates corresponding inputs with each of the attributes
- if i had form_for(@cat), then the form field params would look like cat[name], cat[color], etc
in keeping with Rails convention regarding RESTful routes, there should be a resource declared for each model object (eg, resources :cats)

	# Set up kubectl aliases
	if command -v kubectl 1>/dev/null 2>&1; then
	eval "source <(kubectl completion bash)"
	alias kgnsi='k config set-context --current --namespace=$(kg ns -o json \| jq -r ".items[].metadata.name"\| fzf)'
	test -e "${HOME}/.kubectl_aliases" && source "${HOME}/.kubectl_aliases"
	fi

	# Check secrets resources
	if command -v kubectl 1>/dev/null 2>&1; then
	function kdecsec() {

	# Kickstarter Project Scrape
	require 'nokogiri'
	# HTML, XML parser that allows us to view HTML code as series of nodes; able to highlight elements via CSS selectors
	require 'open-uri'
	# Module that allows you to make http request, and returns us the HTML content of a URL via the `open` command
	require 'pry'

	# projects
	# kickstarter.css("li.project.grid_4")

	=Navigating=
	visit('/projects')
	visit(post_comments_path(post))

	=Clicking links and buttons=
	click_link('id-of-link')
	click_link('Link Text')
	click_button('Save')
	click('Link Text') # Click either a link or a button
	click('Button Value')

	require 'nokogiri'
	require 'open-uri'
	require 'pry'

	class Scraper

	def initialize
	@student_data = []
	@index_url = "http://students.flatironschool.com/"
	@index = Nokogiri::HTML(open(@index_url))

Ian Miller irmiller22

Keybase proof

Data Structure Basics

Array

Definition:

What you need to know:

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

Data Structure Basics

Form_for

Setting up RSpec-Rails

Generate RSpec testing

rails g rspec:install

config/applications.rb