FV Validation

Laravel inspired, dependency-free, JavaScript validation library.

Installation

npm install --save fv-validation

Usage

import Validation from "fv-validation";

// Add a validation rule
Validation.addRule('in', (inputs, input, name, values, message) => ({
    passed: values.indexOf(input) > -1,
    error: message || `The ${name} field must contain one of these values ${values.join(',')}`
}));

const input = {
    name: 'Finer Vision',
    email: '[email protected]'
};

const rules = {
    name: 'required|max:255|in:1,2,3',
    email: 'required|email|max:255'
};

const messages = {
    name: {
        required: 'Please enter your name 👆',
    },
};

const validation = new Validation;
validation.validate(input, rules, messages);

// All errors for all fields
console.log(validation.getErrors());

// All errors for single field
console.log(validation.getErrors('email'));

Available Rules

Required

Value length must be greater than zero.

Usage: 'required'

Min (number)

Value length must be equal to or greater than the given number.

Usage: 'min:5'

Max (number)

Value length must be equal to or less than the given number.

Usage: 'max:5'

Email

Value must be an email.

Usage: 'email'

Pattern (Regex)

Value must match the given regex.

Usage: 'pattern:/d+/'

In (Values)

Value must be equal to the given values.

Usage: 'in:1,2,3'

URL (Values)

Value must be a valid URL.

Usage: 'url'

UK Mobile

Values must me a valid UK mobile number.

Usage: 'uk_mobile'

US Mobile

Values must me a valid US mobile number.

Usage: 'us_mobile'

UK Postcode

Values must me a valid UK postcode.

Usage: 'uk_postcode'

US Postcode

Values must me a valid US postcode.

Usage: 'us_postcode'

Checked

Value must be checked

Usage: 'checked'

Words Min (number)

Value words length must be equal to or greater than the given number.

Usage: 'words_min:5'

Words Max (number)

Value words length must be equal to or less than the given number.

Usage: 'words_max:5'

File Min (number)

File size must be equal to or greater than the given number in MB.

Usage: 'file_min:5'

File Max (number)

File size must be equal to or less than the given number in MB.

Usage: 'file_max:5'

Number (number)

File size must be a number.

Usage: 'number'

Matches (field)

Value matches given field value

Usage: 'matches:field'