ruby - Removing all elements of a column in a two-dimensional array -


i have array:

arr = [["a","b","c"],[2,3,5],[3,6,8],[1,3,1]]

which representing prawn-table containing columns "a", "b", , "c".

how remove entire column "c" values, 5, 8, 1?

maybe there useful hints in "create two-dimensional arrays , access sub-arrays in ruby" , "difficulty modifying 2 dimensional ruby array" can't transfer them problem.

just out of curiosity sake here approach (one-liner):

arr.transpose[0..-2].transpose

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