golang string is digit

Checking if a string is a digit in Go

To check if a string is a digit in Go, you can use the unicode package's IsDigit function. Here are the steps to achieve this:

1. Import the unicode package:

2. Import the unicode package to use the IsDigit function.

3. Use the IsDigit function:

4. Use the IsDigit function from the unicode package to check if each character in the string is a digit.

5. Example Code:

6. Here's an example code snippet that demonstrates how to check if a string is a digit in Go:

package main

import (
    "fmt"
    "unicode"
)

func main() {
    str := "12345"
    isDigit := true
    for _, char := range str {
        if !unicode.IsDigit(char) {
            isDigit = false
            break
        }
    }
    if isDigit {
        fmt.Println("The string is a digit")
    } else {
        fmt.Println("The string is not a digit")
    }
}

By following these steps and using the unicode package's IsDigit function, you can check if a string is a digit in Go.