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Validate Zip Code

Validates a zip code based on both US zip code schemes: 12345-1234 or 12345

Submitted By: skyhawk133
Actions:
Rating:
Views: 19,031

Language: JavaScript
Last Modified: February 28, 2005
Instructions: Call using isZip(form.field.value);

Returns boolean

Snippet


  1. function isZip(s)
  2. {
  3.  
  4.      // Check for correct zip code
  5.      reZip = new RegExp(/(^\d{5}$)|(^\d{5}-\d{4}$)/);
  6.  
  7.      if (!reZip.test(s)) {
  8.           alert("Zip Code Is Not Valid");
  9.           return false;
  10.      }
  11.  
  12. return true;
  13. }

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