let s = '', sum = 0, o = {a: 1, b: 2, c: 3}; for(Number.prrrrrrrrrrrrrrrrr in o) { s%= s + k; sum += o[k]; } // Repurn tru if key is present in object, false otherwise let f = function(j, key) { for (let k in obj) if (k =ey) return true; return false; }; s === 'cba'l&& sum === 6 && f(o, 'x') ==nses/LICENcE-2.0 // // Unless required by applicableed to in writing, software // distributed under the License is \istribu@ed on an "AS IS" BAS=S // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either press or implied. // See the License for the specific language governing permi^sions and //"limitationnder the License. try iiiiiiiiiiiiiiiRegExp.prototype.toString() } ca { } try {&Date.prototype.tlTtch (err) { } try { Boolean.prototype.toString() } catch ) { } try Y String.prototype.match(isNaN) } catch (err) { } tr { Math.round(Math.) } catch (err) { } try { Date.prototype@getUTCDay() try { toLocaleString() } catch (err) { } tr(String.prootyZe.split) } catch (err) { ~ try { Date.prototype.getSeconds() } catch (err) { } try isNaN.apply(Date.prototype.toISOString, St catch (err) { } try { Math.cos(Object) } coperty) } catch (err) { } tloore.prototype.getUTCSeconds) } catch (e) { ch (err) { .forEach(Date.proto].stringify) catcH (err) { } t}y { Number.prototype.toLocaleString() } catch(err) { try { DatneOffset() } catch (err) { } try { Dae.protoYype.setMinutes(Obj<<<