Level 1

• Winner: TOP 5
• Reward: RMB 2

Language: JSX

const img = <img src="2.png" />;
const code = hongbao_decode(img);
const curUrl = location.href;
const newUrl = curUrl.replace('first', code);
if (/\d{8}/.test(code)) {
    console.log('Wrong!');
}
console.log(`The code is: ${code}`);
console.log(`Next level: ${newUrl}`);