ruby each with index
colors = ['red', 'green', 'blue']
colors.each_with_index do |item, index|
p "#{index}:#{item}"
end
"0:red"
"1:green"
"2:blue"ruby each with index
colors = ['red', 'green', 'blue']
colors.each_with_index do |item, index|
p "#{index}:#{item}"
end
"0:red"
"1:green"
"2:blue"ruby find index of element in array
a = [ "a", "b", "c" ]
a.index("b") #=> 1
a.index("z") #=> nilCopyright © 2021 Codeinu
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