Not sure that serialization "works"

gistfile1.js

var x = new RegExp( "/" )
console.log(x.test( "/hello" ));

var serializedRegexParser = /^\/(.+)\/(\w+)?$/
var serializedRegex = x.toString();

console.log('serializedRegex:', serializedRegex);
var matches = serializedRegexParser.exec(serializedRegex);

var [full, regexString, regexFlags] = matches;

console.log('regexString:', regexString);

var y = new RegExp(regexString, regexFlags);
console.log(y.test( "/hello" ));