plug-leaking-promise-race

To prevent promise leaks in async loops, ensure only fresh promise handlers are attached each iteration to avoid handler buildup. This stops unintended promise accumulation across iterations, preventing memory leaks and unpredictable behavior in concurrent JavaScript code.

Promise accumulation causes memory leaks because promise pools persist across loop iterations, leading to handler buildup. This unintended buildup degrades performance and creates memory issues when managing multiple asynchronous tasks without safe concurrency controls.

The best way to manage safe concurrency in loops is using single-waiter signals. This corrected pattern ensures fresh promise handlers are attached each iteration, preventing leak pitfalls and ensuring scalable, leak-free concurrent programming.

Detect leaky promise handling patterns by analyzing loop-based code where promise pools persist across iterations. Identifying these common coding patterns reveals handler buildup that causes performance degradation and memory issues in asynchronous tasks.

Check async loops for promise leak pitfalls when reviewing code that manages multiple promise-based tasks within iterations. This is necessary when optimizing asynchronous code to ensure leak prevention and scalable concurrency management.