zip_equal_length_slices_slack.go

package main

import (
	"errors"
	"fmt"
)

func main() {
	first := []int{1, 2, 3}
	second := []int{4, 5, 6}

	zipped, err := ZipIntSlices(first, second)

	if err != nil {
		panic(err)
	}

	fmt.Print(zipped) // [1 4 2 5 3 6]
}

func ZipIntSlices(firstSlice []int, secondSlice []int) ([]int, error) {
	var zipSlice []int

	firstSliceLength := len(firstSlice)
	secondSliceLength := len(secondSlice)

	if firstSliceLength != secondSliceLength {
		return zipSlice, errors.New("Slices are not of equal length!")
	}

	for i := 0; i < firstSliceLength; i++ {
		zipSlice = append(zipSlice, firstSlice[i])
		zipSlice = append(zipSlice, secondSlice[i])
	}

	return zipSlice, nil
}