How to find JS Memory Leaks?

Question

I have struggled around with the heap profiler in chrome but it is very confusing. Especially if there are minimized libraries inside. But even the DOMElements views, elemen

Answer 1

I don't see mentioned window.performance.memory, which gives you the run-time ability to monitor and take action based on memory usage.

window.performance.memory:

MemoryInfo {
  totalJSHeapSize: 7084834,
  usedJSHeapSize: 6486770,
  jsHeapSizeLimit: 4294705152
}

For a handy percentage, use this:

window.performance.memory.usedJSHeapSize / window.performance.memory.jsHeapSizeLimit

https://developer.mozilla.org/en-US/docs/Web/API/Window/performance