转到：将数组中的字符串转换为整数

Question

How do I convert strings in an array to integers in an array in go?

["1", "2", "3"]

to

[1, 2, 3]

I've searched for some solutions online but couldn't find it. I've tried to loop through the array and did strconv.ParseFloat(v, 64) where v is the value but it didn't work.

Answer 1

You will have to loop through the slice indeed. If the slice only contains integers, no need of ParseFloat, Atoi is sufficient.

import "fmt"
import "strconv"

func main() {
    var t = []string{"1", "2", "3"}
    var t2 = []int{}

    for _, i := range t {
        j, err := strconv.Atoi(i)
        if err != nil {
            panic(err)
        }
        t2 = append(t2, j)
    }
    fmt.Println(t2)
}

On Playground.