How can I retain JavaScript knowledge and start building projects?

Courses are useful for becoming familiar with the syntax and concepts, but they don’t always show whether you can solve problems on your own. Expect your first few projects to feel difficult and messy—that’s a normal part of learning.

Experiment by making a small portfolio site with HTML, CSS, and vanilla JavaScript. You could add an API feature, a map using Leaflet, or a calculator. Coding exercises can also help with problem-solving; once you’re comfortable with fundamentals such as map, filter, reduce, and forEach, consider exploring frameworks like React and languages or tools such as TypeScript.

Start with small projects such as a calculator, to-do list, or simple interactive webpage. Try building them without following a step-by-step tutorial, then search for specific errors when you get stuck. That process gradually improves both your coding and debugging skills.

There isn’t really a shortcut: keep practicing and build things. You’ll remember JavaScript much better when you repeatedly use it to solve problems instead of only watching lessons or reading explanations.