🧒 Explain like I'm 5
Imagine you have a toy box. When you want a toy, you grab it from the box immediately, even if it's a bit dusty. Meanwhile, someone cleans the toy in the background. That's like 'Stale-While-Revalidate'—you get something quickly, and it gets refreshed quietly.
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Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
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