vtypes-only

"only" validation for validate.js

• About
• Installation
• Usage
• Available Options
• License

About

The only validator attempts to make sure that when the field is filled, it will be the only one that is filled amongst the other fields.

Installation

Using npm:

$ npm i --save vtypes-only

const validate = require('validate.js');
const only = require('vtypes-only');
 
// you can then proceed to register the required validators.
validate.validators.only = only;

Usage

validate({}, {attr: {only: true}});
// => undefined
 
validate({attr: {}}, {attr: {only: false}});
// => undefined

const value = {
  attr: {
    a: '',
    b: 't2',
    c: false
  }
};
 
const constraints = {
  attr: {
    only: {
      attributes: ['b', 'c']
    }
  }
};
 
validate(value, constraints);
// {attr: ['Attr must be the only key with value present. Other attributes (v2, v3) should not be present']}
 

For more examples, check out the test files in this package's source folder.

Available Options

name	type	default	description
truthy	boolean	false	Checks for truthy values instead of checking only for null and undefined values
message	string	must be the only key present. Other attributes (%{attributes}) should not be present	Error message

License

vtypes-only is MIT licensed