Question

What is the simplest way to split arrays into multiple arrays based on some conditions? In my scenario, I need to move the integer and the string values to different arrays. I have tried split method, but does not work as expected.

x=[1,2,3,"a","b",4]
x.split {|item| item.kind_of? Fixnum}

In C#, there is a group by option in Linq, which helps you group the objects based on the conditions. Is there a similar method on Object (not using activerecord) ?

Is there a simple way?

Answer 1

You’re looking for Enumerable#partition:

x = [1, 2, 3, "a", "b", 4]
numbers, not_numbers = x.partition{|item| item.kind_of?(Fixnum)}
# => [[1, 2, 3, 4], ["a", "b"]]