xianyuyaofanshen/packages/ccc-obfuscated-code/node_modules/validator/es/lib/isSurrogatePair.js

import assertString from './util/assertString';
var surrogatePair = /[\uD800-\uDBFF][\uDC00-\uDFFF]/;
export default function isSurrogatePair(str) {
  assertString(str);
  return surrogatePair.test(str);
}