i created two dimensional array with the following code. but i can not store value in the array. row and columns of array grows dynamically. can not predict before.
arr = Array.new {Array.new}
and can not do this type of things.....
arr[0][0] = "Ruby"
You could create an abstraction over the standard array, like so
class MyArray < Array
def [](idx)
self.at(idx) ? self.at(idx) : self[idx] = []
end
end
Alternatively, you could use a Hash whose default_proc creates a new array at the specified index. OR a hash whose keys are [row, column]. This would be the best option for large datasets as your operations would be in O(1) time.
