Deploy a WordPress site quickly using AWS EC2 and Easy Engine (domain bought from Cloudflare). Requires a little programming background but is cheap and fast, with high freedom and scalability!
Introduce eval in JavaScript, talk about why not to use it, and finally look at its application and alternatives through the interview questions of reading `<script />` and getting JS calculation results when crawling with App Script.
Deal with the JS asychronous from sequential fade-in animation. Step by step refactor the code from Callback, Promise to Async/Await, providing cleaner and more maintainable code.