Split an Array into several batch

batch.go

package main
/*

Playground: https://go.dev/play/p/81iyOZMOeMP
Output:
batch: [1 2 3 4 5 6 7 8 9 10]
batch: [11 12 13]

*/


import "fmt"

func main() {
	data := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}
	batch := []int{}
	batchSize := 10
  
	for index, number := range data {
		batch = append(batch, number)
		
		if len(batch) >= batchSize || (len(batch) > 0 && index+1 >= len(data)) {
			fmt.Println("batch:", batch)
			batch = []int{}
		}
	}
}