golang strings.Builder type undefined

Question

I was having a problem with the strings.Builder type in GO.

Attempted to run the example code verbatim and GO still responds with:

undefined: strings.Builder

Any clues as to what the problem can be, there's been not other problems at all.

package main

import (
    "fmt"
    "strings"
)

func main() {

    var b strings.Builder
    for i := 3; i >=1; i-- {
        fmt.Fprintf(&b, "%x...", i)
    }
    b.WriteString("ignition")
    fmt.Println(b.String())
}

hobbs · Accepted Answer · 2018-02-25 21:23:33Z

32

strings.Builder was added in Go 1.10 (released 2018-02-16, 9 days ago at the time of writing). If you are building using an older version of Go, it won't be available.

answered Feb 25, 2018 at 21:23

hobbs

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Roee Gavirel · Accepted Answer · 2018-11-11 15:51:31Z

3

If must working with older Go version, you can use bytes.Buffer instead.

answered Nov 11, 2018 at 15:51

Roee Gavirel

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