Ruby cheat sheet

Four good ruby cheat Sheets:
https://overapi.com/ruby
http://www.testingeducation.org/conference/wtst3_pettichord9.pdf
https://github.com/ThibaultJanBeyer/cheatsheets/blob/master/Ruby-Cheatsheet.md#basics
https://www.vikingcodeschool.com/professional-development-with-ruby/ruby-cheat-sheet

Best ruby cheat sheet

def greeting(hello, *names) # *name is a splat argument, takes several parameters passed in an array
  return "#{hello}, #{names}"
end

start = greeting("Hi", "Justin", "Maria", "Herbert") # call a method by name

def name(variable=default)
  ### The last line in here get's returned by default
end

Source: github.com

Best ruby cheat sheet

things.each do |item| # for each things in things do something while storing that things in the variable item
  print “#{item}"
end

Source: github.com

Best ruby cheat sheet

for i in 1..5
  next if i % 2 == 0 # If the remainder of i / 2 is zero, we go to the next iteration of the loop.
  print i
end

Source: github.com

Best ruby cheat sheet

my_array = [a,b,c,d,e]
my_array[1] # b
my_array[2..-1] # c , d , e
multi_d = [[0,1],[0,1]]
[1, 2, 3] << 4 # [1, 2, 3, 4] same as [1, 2, 3].push(4)

Source: github.com

Best ruby cheat sheet

# single line comment

Source: github.com

Similar codes

7 votes143 views3 answers
Input checked by default
CSS
0 vote135 views1 answer
Text size to fit button
CSS
0 vote141 views1 answer
Hiding button border when clicked
CSS
266 votes305 views2 answers
Font awesome 5 pro cdn link
CSS
1 vote152 views1 answer
Nth of type for every 4th after the 1st
CSS
3 votes138 views2 answers
Crop image with circle css
CSS
0 vote170 views1 answer
How to transition text color css
CSS
0 vote94 views1 answer
Remove svg border
CSS
0 vote141 views2 answers
Css animation png
CSS
1 vote249 views1 answer
Bootstrap 4 material icon vertical align
CSS Bootstrap