regex

My Note

  • Phone number
text
^[0-9]{3}-[0-9]{3}-[0-9]{4}$

# optional matching of dash
^[0-9]{3}-?[0-9]{3}-?[0-9]{4}$
  • Email
text
^[a-zA-Z0-9._]+@[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$

# more efficient
^[\w\d._]+@[\w\d]+\.[\w]{2,3}$