📖 Step 6: Development#282 / 291
Edge Function
Edge Function
📖One-line summary
A short server function that runs on global edge nodes close to users.
💡Easy explanation
A short server function that runs on global servers near the user. Korean users hit a node near Korea — faster responses.
✨Example
Runs close to the user
Seoul
New York
London
Singapore
⚡Vibe coding prompt examples
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Write Vercel Edge Functions code that handles A/B test bucketing, including cookie-based assignment.
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Lay out the runtime constraints (APIs, packages) of edge functions and turn it into an adoption checklist.
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Design an architecture combining edge functions + server components to maximize first-render speed.
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