Basic usage

I will describe the most basic example.
I think that the concept of "simple" will be transmitted.

import { Validator } from 'drip-form-validator';

const data = {
  title: 'Post title',
  body: null,
};

const v = new Validator(data, {
  title: {
    required: true,
    max: 255,
  },
  body: {
    required: true,
  },
});

if (v.validate()) {
  // `data` is valid.

} else {
  console.log(v.getAllErrors());
  // { body:
  //  [ { rule: 'required',
  //      params: true,
  //      message: 'The body field is required.' } ] }
}

Validation rules are specified in the following format.

{
  field: {
    ruleName: parameters
  }
}

If you specify false or null for the parameter, validation will not be executed.

const v = new Validation(data, {
  ...,
  body: {
    required: false,
  },
});

Field filters

To validate only a specific field, pass the field name to validate().

const v = new Validator(data, {
  title: {
    required: true,
    max: 255,
  },
  body: {
    required: true,
  },
});

v.validate('title');
// or
v.validate(['title', 'body']);

Useful if you only want to run specific tests in the UI layer.

For API details of the constructor, please see API Document.