Go: convert strings in array to integer

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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.

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