Cheatography
https://cheatography.com
for rapid access to nose parameters, selenium and python search methods and other stuff like jenkins URL coomands
This is a draft cheat sheet. It is a work in progress and is not finished yet.
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Ruby Math
Command |
Description |
Exponentiation (**) |
Exponentiation raises one number (the base) to the power of the other (the exponent). For example, 23 is 8, since23 means "give me 2 2 2" (2 multiplied together 3 times). |
Modulo (%) |
Modulo returns the remainder of division. For example, 25 % 7 would be4, since 7 goes into 25 3 times with 4 left over. |
Ruby Miscelaneous
Command |
Description |
puts & print |
Puts prints but adds a new line at the end |
=begin
multiline
comments
=end
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no space between the = and the keyword, they need to be on a line by themselves |
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Is the Ruby method that gets input from the user. When getting input, Ruby automatically adds a blank line after each bit of input. |
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removes extra blank lines |
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It modifies the variable in itself, example: instead of doing print "This is my question?"
answer = gets.chomp
answer2 = answer.capitalize
print = answer2
you can use print "This is my question?"
answer = gets.chomp
answer.capitalize!
print answer
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Ruby String methods
Command |
Description |
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returns the length of a string |
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returns the string backwards |
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returns the same string all in caps |
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returns the same string all in lowercased |
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returns the string with just the first letter in caps and the rest on lowercase |
string interpolation |
first_name = "Kevin"
puts "Your name is #{first_name}!"
#=> Your name is Kevin
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