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A method for jQuery Validation Plugin (http://jqueryvalidation.org/). It checks if a ZIP code entered contains one of a number of prefixes specified in an array. It can also check if a ZIP code is within a certain range or if it contains a specific format (e.g. USA, Canada, etc.). Client work.
/*
Version: 1.0
File: zip-validation.js
Author: Juan Garcia
Email: dev [at] soleilnoirmedia [dot] com
Description: zipValidation.js contains a method for jQuery Validation Plugin (http://jqueryvalidation.org/).
It checks if a ZIP code entered contains one of a number of prefixes specified in an array (A requirement from a client).
It can also check if a ZIP code is within a certain range or if it contains a specific format (e.g. USA, Canada, etc.).
Ideal to validate addresses for local deliveries.
*/
$.validator.addMethod("zipcode", function(value, element) {
// Specify your array
var prefixarray = ["10", "11", "12"];
// Specify the size (from x index to y index of the string, exclusive ) of the "prefix" you want to validate against
var prefix = value.slice(0, 2);
// A single condition is checked (you can fix this by nesting, looping, chaining or other means),
// if you uncomment an "if" statement, comment out other "if" statements.
// You can check for the "prefix" to exist in the specified array
if ($.inArray(prefix, prefixarray) > -1) {
return true;
}
/* Alternatively, you can specify a range, useful for US postal codes
* Eg. ^1[1-3]\d{3}$ Matches the range 10XXX to 15XXX (can be used with XXXXX-XXXX formated codes,
* where the last four numbers are irrelevant for validation purposes).
* Code:
* if (/^1[0-5]\d{3}/.test(value) ) {
* return true
* }
*/
/* Alternatively, you can check only for a specific format.
* As it stands, it would check for valid US, Mexico formats: XXXXX-XXXX or XXXXX
* or Canadian formats XXX-XXX or XXX XXX or XXXXXX (lower and upper case).
* Code:
* if ( /\d{5}-\d{4}$|^\d{5}$|^[a-zA-Z][0-9][a-zA-Z](-| )?[0-9][a-zA-Z][0-9]$/.test(value) ) {
* return true
* }
*
*/
else {
return false;
}
},
// Depending on the type of validation you perform you can specify an error message.
"The ZIP code you entered is invalid / No delivery available to the specified ZIP code.");
// Usage example
$("form").validate({
rules : {
zip : {
// This validation will be performed before our method;
// no need to go into our method if the ZIP code isn't even long enough to be valid.
minlength : 5,
// Our method.
zipcode : "true"
}
},
messages : {
zip : {
// Our method will provide its own error message.
minlength : "The ZIP code you entered is too short."
}
}
});
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