Blackjack is a popular card game that is loved by players for its ease of learning and fun. If you want to learn how to write a successful Blackjack game in JavaScript, CodePen and Github offer a number of free resources and code snippets to help you get started quickly. First, let's take a look at CodePen. CodePen is an online development platform that provides a rich JavaScript code snippet and interactive code experience. By creating a blank card game page on CodePen, you can quickly learn how to write game logic using JavaScript. On CodePen, there are many excellent Blackjack titles that you can browse and learn from, as well as run your game directly on the page to get real-time feedback. Second, Github is a powerful code hosting and collaboration platform. If you want to create a complete Blackjack game, Github is a perfect choice. You can set up a project on Github, save your code, and collaborate with multiple people through tools like branch management and branch merging. Github provides a large number of templates and project examples, you can choose the template that suits you according to your needs, and modify and extend it accordingly. In addition, Github provides a rich JavaScript library and framework that can help you quickly build a fully functional Blackjack game. On CodePen and Github, you can find many excellent Blackjack game code snippets and project examples, resources that can help you get started quickly and improve your programming skills. With constant practice and experimentation, you can gradually master the skills and strategies of writing a Blackjack game. If you have enough patience and perseverance, you can also try to create a completely independent Blackjack game project and share and improve your work with other developers on Github. In conclusion, if you want to learn how to write a successful Blackjack game in JavaScript, CodePen and Github are both very valuable resources. By taking advantage of the code snippets and project examples provided by these platforms, you can get started quickly and gradually improve your programming skills. Good luck in writing the game Blackjack!