ryanckulp

"string".gsub("g", "") # => "strin" (new value)
"string".gsub!("g", "") # => "strin" (modified original value)

ryanckulp

hash = { person: "Ryan" }
hash.stringify_keys
# => { "person" => "Ryan" } you should see this result after hitting enter

ryanckulp

def create_full_name(first, last)
  "#{first} #{last}"
end

name_length = create_full_name("Ryan", "Kulp").length

ryanckulp

def create_full_name(first, last)
  "#{first} #{last}"
end

full_name = create_full_name("Ryan", "Kulp")
name_length = full_name.length

ryanckulp

weekday? && not_monday || wednesday || friday

ryanckulp

A && B || C || D

ryanckulp

A && B # “and” => returns ‘true’ if A and B are both true
A || B # “or” => returns true if either A or B are true

ryanckulp

if_true ? do_this : do_that

ryanckulp

brew install yarn
rails new sample_app
cd sample_app
rails s
# visit http://localhost:3000 in your browser
rm -rf sample_app

ryanckulp

str_a = 'j.p. morgan'
str_b = 'jp morgan chase'

str_a == str_b # => false

str = 'j.p. morgan'

str.downcase.gsub("j.p.", "jp").gsub("j.p", "jp").gsub("jp.", "jp").gsub("jp morgan", "jp morgan chase") # => "jp morgan chase"

def jp_morgan_chase?(str)