validator/es/lib/unescape.js

String validation and sanitization

import assertString from './util/assertString';
export default function unescape(str) {
  assertString(str);
  return str.replace(/&quot;/g, '"').replace(/&#x27;/g, "'").replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&#x2F;/g, '/').replace(/&#x5C;/g, '\\').replace(/&#96;/g, '`').replace(/&amp;/g, '&');
  // &amp; replacement has to be the last one to prevent
  // bugs with intermediate strings containing escape sequences
  // See: https://github.com/validatorjs/validator.js/issues/1827
}