gistfile1.go

package main

import (
	"log"
)

func main() {
	test := []int{1, 2, 3, 4, 5}

	log.Println(test)

	chunks := ChunkInts(test, 4)

	log.Println(chunks)
}

func ChunkInts(ints []int, chunkSize int) [][]int {
	var chunks [][]int
	var to, from int

	if chunkSize >= len(ints) {
		to = len(ints)
	} else {
		to = chunkSize
	}

	for from < len(ints) {
		if to > len(ints) {
			to = len(ints)
		}

		subArray := ints[from:to]

		chunks = append(chunks, subArray)

		from = to
		to += chunkSize
	}

	return chunks
}