go

How to write isNumeric function in Golang?


I want to check if a string is numeric.

For example:

I thought about using ParseInt and ParseFloat (from the strconv package), but am not sure if that is the right way.


Solution

  • I was thinking of using strconv ParseInt and ParseFloat but not sure if that is the right way.

    Well, it's certainly a right way.

    You don't need to use ParseInt, though. ParseFloat will do the job.

    func isNumeric(s string) bool {
        _, err := strconv.ParseFloat(s, 64)
        return err == nil
    }
    

    See an example here: https://play.golang.org/p/D53HRS-KIL