colors = ['red', 'green', 'blue']
colors.each_with_index do |item, index|
p "#{index}:#{item}"
end
"0:red"
"1:green"
"2:blue"
hash.each_with_index do |(key, value), index|
# ...
end
X.each_with_index do |item, index|
puts "current_index: #{index}"
end
Code Example |
---|
Ruby :: ruby is character |
Ruby :: ruby group by |
Ruby :: rails array count occurrences of elements |
Ruby :: random datetime ruby |
Ruby :: rails convert image to base64 |
Ruby :: preview mailers rails |
Ruby :: ruby get current process id |
Ruby :: timeout in rails |
Ruby :: heroku run rails c |
Ruby :: droptable rails |
Ruby :: insert element in array ruby |
Ruby :: ruby conditionals |
Ruby :: get all the associations of a rails model |
Ruby :: all rails g model types |
Ruby :: manage ruby versions |
Ruby :: devise update password |
Ruby :: install ruby on rails ubuntu 18.04 |
Ruby :: rails check if object is new |
Ruby :: ruby rails check field changed |
Ruby :: ruby nil to float is 0.00 |
Ruby :: add several columns rails |
Ruby :: $stdout ruby override |
Ruby :: ruby classes |
Ruby :: print in rails |
Ruby :: ruby substring |
R :: random integer in r |
R :: r range with step |
R :: view table/dataframe in r |
R :: superscript in r |
R :: calculate correlation in r |