A period "." represents any typable character.
To start. Click in the regex input field below, and type a period.
you will notice that the regex you enter will be applied to the validation to the collection of other input fields.
To foce a match of one or more. Use a plus sign after a pattern. Note: a period is a single character pattern. Other patterns can be in parenthesis or oin square bracks.

Type your regex pattern here