js-validate

js-validate

Functional, extensible, input validation. Make sure the value you receive is EXACTLY what you expect.

Getting Started

Installation

npm install js-validate

Quick Use

```node var validator = require('js-validate'); ```

var validate = validator.start();

Validate against a single rule:

validate('123', 'min-length 2');  //--> true

Validate against multiple rules:

validate('123', ['min-length 2', 'number']);  //-->true

Built-in Rules

- alpha - alphanumeric - boolean **NEW** - capitals (counts capital characters) - ends-with - equals - length - max - max-length - min - min-length - number (isNumber) ***Altered Rule*** - numbers (Number Characters) - numeric (consists of numerical digits) **NEW** - specials (Special Characters) - starts-with

Create a validator (rule) group:

validator.group({
  'account-number': [
    'alphanumeric',
    'min-length 7',
    'starts-with 000-',
    'ends-with -00'
  ]
});

Validate against a group of rules:

validate('000-KLJ8989123-00', 'account-number');  //--> true

Create a custom rule:

validator.rules({
  isOkay: function(input) {
    return input === 'ok';
  }
});

Keep this in mind when creating custom rules:

• Validator rules must return a pure boolean (true | false)
• The first parameter must be the user input
• Unlimited additional parameters are supported
• Custom rules are added to the default rule list
• Custom rules may be used in conjunction with defaults in rule groups