partition_array

📂 Splitting Arrays with partition

Array#partition splits an array into two subarrays based on a predicate, returning [true_group, false_group]. It’s perfect for categorizing data in one pass.

nums = (1..10).to_a
even, odd = nums.partition(&:even?)
# even => [2,4,6,8,10], odd => [1,3,5,7,9]