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774 B
JavaScript

"use strict";
const ValidationError = require("@validatem/error");
const isString = require("@validatem/is-string");
let commonErrors = [
/^mailto:.+$/, // mailto:email@example.com
/^.+<[^>]+>$/, // Real Name <email@example.com>
];
let validEmail = /.@./; // Contains an @, and is preceded and succeeded by at least one character
module.exports = [
isString,
function isEmailAddress(value) {
// TODO: Include explanation in README as to how checking for the presence of '@' really *is* the correct check in practice, and that any further validation should be done by actually trying to send an e-mail
if (!validEmail.test(value) || commonErrors.some((errorRegex) => errorRegex.test(value))) {
throw new ValidationError(`Must be an e-mail address`);
}
}
];