angular-vin

VIN (vehicle identification number) validator and input directive. See VIN Wikipedia for information on VIN

Vehicle VINs use a check digit system to determine if the VIN is valid. VINs past 1980 must have 17 digits, and they must be alphanumeric and NOT contain the letters I, Q, or O (likely to avoid confusion with numbers).

Usage

First, you can add to your bower.json if you want to use that:

"angular-vin": "rfink/angular-vin"

Or simply run

bower install angular-vin

Angular-vin only requires angular (in production). To use in your angular app, add "angular-vin" to your dependencies:

    var myApp = angular.module('myApp', ['angular-vin']);

Then, you can add "vin-input" directive inside your html. You can also specify a callback from scope to call when the VIN is successfully input and validate. Also, the module sets 4 different validity properties depending on what is invalid (see below)

    <input vin-input vin-is-valid="onValid" name="vin" ng-model="vin" />
    <div ng-show="form.vin.$error.invalidlength">Vin too short</div>
    <div ng-show="form.vin.$error.invalidchars">Invalid characters</div>
    <div ng-show="form.vin.$error.invalidcheckdigit">Check digit does not match</div>

The directive prevents invalid characters, adds a max length to the input element, and automatically converts input to upper-case.

Controller code:

    myApp.controller('MyCtrl', function MyCtrl($scope) {
        $scope.onValid = function(vin) {
            console.log(vin + ' is a valid VIN');
        };
    });

You can opt out of using the directive and simply use the service.

    myApp.controller('MyCtrl', function MyCtrl($scope, vinValidatorService) {
        var result = vinValidatorService.validate('11111111111111111');
        if (result.valid) {
            // Do things
        }
    });

For the sake of completeness, the vinValidatorService exports additional properties relating to VIN validation. These are:

• vinLength - equal to 17
• checkDigitIndex - equal to 8 (9th position in the VIN)
• invalidChars - 'OQI'
• regEx - "[A-HJ-NPR-Z0-9]{17}"
• replaceRegEx - "[^A-HJ-NPR-Z0-9]"
• characterMap - map of alphabet characters to numeric value
• weights - weights based on index position

Testing

  grunt karma

Building

  grunt build