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

0 vote182 views1 answer
How to give text two colors in css
CSS
6 votes192 views2 answers
Image orientation css
CSS
0 vote187 views4 answers
Width in css
CSS
0 vote170 views1 answer
Container transparent text opaque
CSS
34 votes197 views4 answers
Hide element using css
CSS
4 votes153 views1 answer
Linear gradient instagram
CSS
7 votes186 views3 answers
Circle button html
CSS
0 vote164 views1 answer
Image with colored background html css tigether
CSS
6 votes171 views3 answers
Print media query css
CSS
4 votes174 views2 answers
Html css rounded corners with mark
CSS