Cleanup Functions in useEffect: Stop Leaks Before They Start
Introduction Almost everyone uses useEffect in React for fetching data, timers, or adding event listeners. The part that causes the most silent bugs…
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Контекстные менеджеры в Python за пределами with open(): пишем свои и упрощаем код
with open() знают все. Но контекстные менеджеры в Python — это не только про файлы. Они помогают безопасно управлять соедин…
My CI Runner Was Killed by My Own Script: The Dark Side of Cleanup
Towards the end of last month, I started a build job on my self-hosted GitHub Actions runner. It was a job that normally took 10-15 minutes, but thi…