Question

How to validate a 10-digit standard 10 digit phone number using RegEx in Go

Answer 1

package main

import (
    "fmt"
    "regexp"
)

func main() {
    phoneNumbers := []string{
        "333-555-1234",
        "(333)-555-1234",
        "333 555 1234",
        "333.555.1234",
        "+91 (333) 555-1234",
    }

    pattern := `^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$`

    for _, phoneNumber := range phoneNumbers {
        matched, _ := regexp.MatchString(pattern, phoneNumber)
        if matched {
            fmt.Println("Valid phone number format")
        } else {
            fmt.Println("Invalid phone number format")
        }
    }
}



/*
run:

Valid phone number format
Valid phone number format
Valid phone number format
Valid phone number format
Valid phone number format

*/

 

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