Set Level

function reactEventHandler() {

let react = Object.values(document.querySelector("#body"))[0].stateNode;

return react[Object.keys(react).filter(a => a.includes("reactInternalInstance"))].return.stateNode;

}

(() => {

let n = document.createElement('iframe');

document.body.append(n);

window.prompt = n.contentWindow.prompt.bind(window);

window.alert = n.contentWindow.alert.bind(window);

n.remove();

})();

level = parseInt(prompt("Enter level:"));

reactEventHandler().setState({ level });

alert(`Set level to ${level}.`);