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Open a modal 10 times without cleanup and you've got 10 stacked timers silently draining memory. Here's what this looks like in a PR and how senior devs catch it.
AdminJuly 31, 20266 min read
`forEach` doesn't return a Promise, so `await` before it resolves instantly. Every async callback fires and is forgotten — this is how batch processors ship broken.
AdminJuly 31, 20265 min read

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