golang check file extension

To check the file extension in Go (Golang), you can follow these steps:

1. Import the necessary packages:

import (
    "fmt"
    "path/filepath"
)

1. Define a function to check the file extension:

func checkFileExtension(filename string) {
    ext := filepath.Ext(filename)
    fmt.Println("File extension:", ext)
}

1. Call the function and pass the file name as an argument:

func main() {
    filename := "example.txt"
    checkFileExtension(filename)
}

Let me know if you have any further questions.