Validate.js

Validate.js uses a constraint setting as JavaScript Object including injected reporting functions. It has the ability to customize the message of each validation.

var constraints = {
  username: {
    presence: true,
    exclusion: {
      within: ["nicklas"],
      message: "'%{value}' is not allowed"
    }
  },
  password: {
    presence: true,
    length: {
      minimum: 6,
      message: "must be at least 6 characters"
    }
  }
};

validate({password: "bad"}, constraints);
// => {
//   "username": ["Username can't be blank"],
//   "password": ["Password must be at least 6 characters"]
// }

This is a more basic way with less possibilities. A lot have to be programmed here each time again.

1. Feature comparison

The following table shows all Validate.js features and the identical or nearest way to reach the same using alinex-validator.

The code examples are only pseudo code to make it shorter