phone number regex pattern javascript code example

Example 1: js regex validate phone number

My regex of choice is:

/^[\+]?[(]?[0-9]{3}[)]?[-\s\.]?[0-9]{3}[-\s\.]?[0-9]{4,6}$/im
Valid formats:

(123) 456-7890
(123)456-7890
123-456-7890
123.456.7890
1234567890
+31636363634
075-63546725

Example 2: javascript regex french phone number

function regexPhoneNumber(str) {
	const regexPhoneNumber = /^((\+)33|0)[1-9](\d{2}){4}$/; 
  
	if (str.match(regexPhoneNumber)) {
		return true;
	} else {
		return false;
	}
}

let phoneNumber = "+33777777777";
console.log(regexPhoneNumber(phoneNumber));