partition list Groovy builtin to split an array into equal sized subarrays? Stack Overflow

def partition(array, size){
def partitions =[]
int partitionCount = array.size()/ size

partitionCount.times { partitionNumber ->
def start = partitionNumber * size
defend= start + size -1
partitions << array[start..end]
}

if(array.size()% size) partitions << array[partitionCount * size..-1]
return partitions
}