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What is "%!s" in the output of a float? – Telegram API

I’m getting coordinates (location) as an output of 2 float64 numbers, and it looks like this:

&{%!s(float64=42.539679) %!s(float64=42.601339)}

This is the first time I’m seeing anything like that, so what is “%!s”?
“TypeOf” says “%!s(float64=42.539679)” is float64. So how do I work with this kind of floats? Is there any way to parse it, or somehow to make the %!s(float64=42.539679) look like 42.539679?

UPD: the highlighted line is a *tgbotapi.Location object from Syfaro’s telegram bot api.
The api has this structure:

type Location struct {
    Longitude float64 `json:"longitude"`
    Latitude  float64 `json:"latitude"`
}

and the Location.Latitude gives me this: “%!s(float64=42.539679)” (float64)(?)

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2

Answers


  1. 0

    https://golang.org/pkg/fmt/

    %!s is basically used in errors to help you identify a problem.

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  2. 0

    I think this is a matter of using an incorrect format “verb.” You need to use %f instead of %s

    package main

import (
    "fmt"
)

func main() {
    var f float64 = 3.14
    fmt.Printf("attempting to print as string: %s n", f)
    fmt.Printf("attempting to print as float: %f", f)
}

    Runnable: https://play.golang.org/p/Pec_QrxBIl

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