Archive for December, 2011

 

Javascript regular expressions (regex, regexp) .. city, state, zip (postal code) ..

Dec 14, 2011 in javascript, Web

Check for zip / postal code :

  if (field.value.search(/^\d{5}$/) != -1) {
    ...
  }

Check for “city, state zip” (space zip..) :

(note the 5\4 zip check.. like anybody would enter a 9 digit zip.. right..)

  if (field.value.search(/([^,]+),\s*(\w{2})\s*(\d{5}(?:-\d{4})?)/) != -1 ) {
    ...
  }

Check for “city, state” :

  if (field.value.search(/([^,]+),\s*(\w{2})/) != -1 ) {
    ...
  }