veronicacannon

# frozen_string_literal: true

Map = Struct.new(:addresses) do
  def within_radius(kms)
    within_range = []
    addresses.each do |address|
      within_range << address.to_s if address.kms <= kms
    end
    within_range
  end

veronicacannon

# frozen_string_literal: true

# observable object aka subject
module Observable
  def attach_observer(observer)
    @observers ||= []
    @observers << observer unless @observers.include?(observer)
  end

  def remove_observer(observer)

veronicacannon

within find('tr', text: 'My title') { click_link 'edit' }

item = find(".selector", text: "Company")
.first(:xpath, ".//..") # parent node
.find(".selector2")

veronicacannon

https://thoughtbot.com/upcase/videos/rack

require "rack"
require "thin"

class HelloWorld
  def call(env)
    [ 200, { "Content-Type" => "text/plain" }, ["Hello World"] ]
  end
end

veronicacannon

http://augustl.com/blog/2008/procs_blocks_and_anonymous_functions/

Procs are useful code organization tools. Let’s say that you want to calculate the running time for a few code snippets, in order to benchmark them. To do this elegantly, you want to be able to call a method and pass some code to it, and have the execution time returned.

Here’s how you can use procs to do just that:

def time(a_proc)
  start = Time.now
  a_proc.call
  puts Time.now - start

veronicacannon