What are common memory leaks in JavaScript?

What are common memory leaks in JavaScript?

Common memory leaks in JavaScript include global variables, forgotten timers, and closures that hold references.

Can you explain how global variables cause memory leaks?

Global variables persist in memory for the lifetime of the application, preventing garbage collection.

What about closures? How do they contribute to memory leaks?

Closures can retain references to outer function variables, which can lead to memory not being freed if not handled properly.

How can I prevent memory leaks in my JavaScript code?

To prevent memory leaks, avoid global variables, clear timers, and ensure proper cleanup of event listeners.