I have the following array:
array = [["Group EX (Instructor)", 0.018867924528301886], ["Personal Reasons", 0.018867924528301886]]
and I need to split this array up, dynamically, into two arrays:
text_array = ["Group EX (Instructor)", "Personal Reasons"]
number_array = [0.018867924528301886,0.018867924528301886]
I'm currently doing this, which can't be the right way:
array.each do |array|
text_array << array[0]
number_array << array[1]
end
Simply use #transpose.
array = [["Group EX (Instructor)", 0.018867924528301886], ["Personal Reasons", 0.018867924528301886]]
a1, a2 = array.transpose
#=> [["Group EX (Instructor)", "Personal Reasons"],
[0.018867924528301886, 0.018867924528301886]]
Repairing your existing code,
text_array = array.map { |x| x[0] } #give back first element of each subarray
number_array = array.map { |x| x[1] } #give back second element of each subarray
I would do as below :
array = [["Group EX (Instructor)", 0.018867924528301886], ["Personal Reasons", 0.018867924528301886]]
text_array,number_array = array.flatten.partition{|e| e.is_a? String }
text_array # => ["Group EX (Instructor)", "Personal Reasons"]
number_array # => [0.018867924528301886, 0.018867924528301886]
This too works:
text_array, number_array = array.first.zip(array.last)
but transpose clearly is what you want.
