is-implemented.js
345 Bytes
"use strict";
module.exports = function () {
var dummyRegExp = /a/;
// We need to do check on instance and not on prototype due to how ES2015 spec evolved:
// https://github.com/tc39/ecma262/issues/262
// https://github.com/tc39/ecma262/pull/263
// https://bugs.chromium.org/p/v8/issues/detail?id=4617
return "unicode" in dummyRegExp;
};