How to translate a string into an array of numbers in Go?

Question

go

Here I have a string "1,3,5,6,8". How can I get an array of numbers from it?

Answer 1

1. get []string
https://golang.org/pkg/strings/#Split
2. create []int with length like []string.
There are 2 "correct" options:
If we want to fill through append, then we use:
Or if we want to fill through an index, then we do this:
https://golang.org/ref/spec#Slice_types
https://golang.org/ref/ spec#Length_and_capacity
3. iterate for range over []string and fill in []int.
https://golang.org/ref/spec#For_statements
https://golang.org/pkg/strconv/#Atoi
Don't forget to handle errors.

Answer 2

https://golang.org/pkg/strings/#Split

Answer 3

https://play.golang.org/p/gGU5-rsySS

package main

import (
  "fmt"
  "strconv"
  "strings"
)

func main() {
  str := "1,3,5,6,8,42"

  strs := strings.Split(str, ",")
  var ints []int
  for _, s := range strs {
    num, err := strconv.Atoi(s)
    if err == nil {
      ints = append(ints, num)
    }
  }

  fmt.Println(ints)
}