runtyp/dist/predicates/email.js

Lightning-fast, zero-dependency runtime validation for TS/JS. 25x faster than zod with a cleaner API.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.email = void 0;
const tester = /^[-!#$%&'*+/0-9=?A-Z^_a-z`{|}~](\.?[-!#$%&'*+/0-9=?A-Z^_a-z`{|}~])*@[a-zA-Z0-9](-*\.?[a-zA-Z0-9])*\.[a-zA-Z](-?[a-zA-Z0-9])+$/;
const INVALID_EMAIL_ERROR = {
    isValid: false,
    errors: { root: 'must be a valid email address' },
};
/**
 * Validates an email address.
 * Taken from https://github.com/manishsaraan/email-validator/blob/master/index.js
 */
function email() {
    return (value) => {
        if (typeof value !== 'string') {
            return INVALID_EMAIL_ERROR;
        }
        const emailParts = value.split('@');
        if (emailParts.length !== 2) {
            return INVALID_EMAIL_ERROR;
        }
        const account = emailParts[0];
        const address = emailParts[1];
        if (account.length > 64) {
            return INVALID_EMAIL_ERROR;
        }
        if (address.length > 255) {
            return INVALID_EMAIL_ERROR;
        }
        const domainParts = address.split('.');
        if (domainParts.some((part) => part.length > 63)) {
            return INVALID_EMAIL_ERROR;
        }
        if (!tester.test(value)) {
            return INVALID_EMAIL_ERROR;
        }
        return {
            isValid: true,
            value: value,
        };
    };
}
exports.email = email;
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