@valkyriestudios/validator/cjs/functions/vEmail.js

A lightweight configurable javascript validator

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.vEmail = vEmail;
exports.default = vEmail;
const RGX_USERNAME = /^(")?[A-Z0-9&._%+-]+(")?$/i;
const RGX_DOMAIN = /^(\w{1,})([.-]?\w)*(\.\w{2,63})+$/;
function vEmail(val) {
    if (typeof val !== 'string')
        return false;
    const len = val.length;
    if (!len)
        return false;
    const parts = val.split('@');
    if (parts.length !== 2)
        return false;
    const [user, domain] = parts;
    const user_len = user.length;
    if (user_len > 64 ||
        !RGX_USERNAME.test(user) ||
        user[0] === '.' ||
        user[user_len - 1] === '.' ||
        user.indexOf('..') >= 0 ||
        domain.length > 253)
        return false;
    return RGX_DOMAIN.test(domain);
}