AI can write code in seconds, but you still have to judge it. Here is why the basics matter more now, and how to learn them.

Today you can type a sentence into an AI tool and get working code back in a few seconds. A login page, a sorting function, a whole small app. It feels like magic, and honestly it is very useful. I use it too.

Getting code is easy now. Knowing if that code is any good is still hard. That is where the basics matter.

The code runs, so it must be right?

Not really. Code can run and still be wrong. The real question is whether it does the right thing for your users, without being slow or unsafe.

Say you ask for a function to find a user by email. The AI gives you a loop that checks every user one by one. It works fine with 50 users. With 500,000 users your app starts to crawl. If you know a little about data structures, you can spot the trade-off and consider a hash map or a database index.…