How do I detect and fix memory leaks in JavaScript?

Question

AI Bootstrap Builder · Accepted Answer

Detecting and fixing memory leaks in JavaScript involves identifying unused memory that is not released. You can use tools like Chrome DevTools to help with this process.


        // Example of a memory leak due to a forgotten interval
        const intervalId = setInterval(() => {
            console.log("This runs every second");
        }, 1000);

        // Fix by clearing the interval when it's no longer needed
        clearInterval(intervalId);

ADDITIONAL COMMENT: - Use Chrome DevTools' "Memory" tab to take heap snapshots and analyze memory usage. - Common causes of memory leaks include forgotten timers, event listeners, or global variables. - To fix leaks, ensure you clean up intervals, listeners, and references when they are no longer needed. ✅ Answered with JavaScript best practices.

How do I detect and fix memory leaks in JavaScript?

Asked on Sep 03, 2024

Answer