Regular expression which allows numbers, spaces, plus sign, hyphen and brackets

Question

I am using jquery validator where I have added a method to validate a string which allow only numbers, spaces, plus sign, hyphen and brackets. Number is mandatory in the str

Answer 1

You can add the required characters into character class as

/^(?=.*[0-9])[- +()0-9]+$/

Regex Demo

Regex Explanation

• (?=.*[0-9]) postive look ahead. Ensures that there is atleast one digit

• [- +()0-9]+ matches numbers, spaces, plus sign, hyphen and brackets

OR

If you are reluctant in using look aheads. You could write without them a lenghier regex as

/^[- +()]*[0-9][- +()0-9]*$/