[Golang] Get Filename Without Extension

Use Go standard library to get file name without extension.

• path.Ext method to get filename extension
• strings.TrimSuffix method to remove the extension from the filename.

import (
      "path"
      "strings"
)

func FilenameWithoutExtension(fn string) string {
      return strings.TrimSuffix(fn, path.Ext(fn))
}

Run Code on Go Playground

Tested on:

• Ubuntu Linux 17.10, Go 1.10.
• The Go Playground