Validation library for Node.js [closed]

Question

Is there a good validation framework for node.js that validates a variable for:

• if its a type of String, Date, Number etc
• max and min length
• email, phone
• etc...

Answer 1

I recently discovered node-validator by chriso.

Example

var check = require('validator').check,     sanitize = require('validator').sanitize  //Validate check('[email protected]').len(6, 64).isEmail();       //Methods are chainable check('abc').isInt();                               //Throws 'Invalid integer' check('abc', 'Please enter a number').isInt();      //Throws 'Please enter a number' check('abcdefghijklmnopzrtsuvqxyz').is(/^[a-z]+$/);  //Sanitize / Filter var int = sanitize('0123').toInt();                  //123 var bool = sanitize('true').toBoolean();             //true var str = sanitize(' \s\t\r hello \n').trim();      //'hello' var str = sanitize('aaaaaaaaab').ltrim('a');        //'b' var str = sanitize(large_input_str).xss(); var str = sanitize('&lt;a&gt;').entityDecode();     //'<a>' 

Answer 2

I wanted ruby on rails and cakephp style validations. I knew it was something I would use over and over so I made this quick npm module: https://npmjs.org/package/iz

It reads semantically like well like jasmine, and can be used client or server side. This means it comes with support for commonjs and amd along with validation rules passed in via JSON.

It is pretty well unit tested, it has no production dependencies, and the scope is locked down to just validation. We seem to have a small community going now. Ideas, feedback and pull requests are all welcome.

Current library functions:

iz.alphaNumeric(*);               // Is number or string(contains only numbers or strings) iz.between(number, start, end);   // Number is start or greater but less than or equal to end, all params numeric iz.blank(*);                      // Empty string, undefined or null iz.boolean(*);                    // true, false, 0, 1 iz.cc(*);                         // Luhn checksum approved value iz.date(*);                       // Is a data obj or is a string that is easily converted to a date iz.decimal(*);                    // Contains 1 decimal point and potentially can have a - at the beginning iz.email(*);                      // Seems like a valid email address iz.extension(ob1, ob2);           // If obj2's methods are all found in obj1 iz.fileExtension(arr, value);     // Checks if the extension of value is in arr. An obj can be provide, but must have indexOf defined. iz.fileExtensionAudio(value);     // Check against mp3, ogg, wav, aac iz.fileExtensionImage(value);     // Check against png, jpg, jpeg, gif, bmp, svg, gif iz.inArray(arr, value);           // If * is in the array iz.int(*, bool (optional));       // Is an int. If the 2nd variable is true (false by default) a decimal is allowed iz.ip(str);                       // str resembles an IPV4 or IPV6 address iz.minLen(val, min);              // val (str or arr) is greater than min iz.maxLen(val, max);              // val (str or arr) is shorter than max iz.multiple(num, mult);           // Number is multiple of another number iz.number(*);                     // Is either an int or decimal iz.ofType(obj, typeName);         // If it is a named object, and the name matches the string iz.phone(str, canHaveExtension?); // Is an american phone number. Any punctuations are allowed. iz.postal(*);                     // Is a postal code or zip code iz.ssn(*);                        // Is a social security number