Golang : Join arrays or slices example



Tags : golang join-arrays combine-slices append

A quick note on how to join arrays or slices in Golang. So used to Python way of joining arrays with + symbol. However, it is not available in Golang :(

To join two arrays in Golang, use the append function instead.

 package main

 import (
 "fmt"
 )

 func main() {
 list1 := []int{1, 2, 3}
 list2 := []int{4, 5, 6}

 // python way - will not work in Golang
 //list3 := list1 + list2
 //fmt.Println(list3)

 list3 := list1

 // example
 // to combine two slices or join arrays, use for loop and builtin append function
 for index, _ := range list2 {
 list3 = append(list3, list2[index])
 }

 fmt.Println(list3)

 // another example
 // super quick way to join arrays
 fmt.Println(append(list1, list2...))

 }

Output:

[1 2 3 4 5 6]

[1 2 3 4 5 6]

  See also : Golang : Combine slices of complex numbers and operation example



Tags : golang join-arrays combine-slices append

By Adam Ng

IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.


Advertisement