@polyn/blueprint/src/validators/register-expressions.js

An easy to use, flexible, and powerful validation library for nodejs and browsers

module.exports = {
  name: 'registerExpressions',
  factory: (Blueprint) => {
    'use strict'

    const { registerValidator } = Blueprint

    registerValidator('expression', (regex) => ({ key, value }) => {
      return regex.test(value) === true
        ? { value }
        : { err: new Error(`expected \`${key}\` to match ${regex.toString()}`) }
    })
  },
}