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Effection Blog Why JavaScript Needs Structured Concurrency Scope owns lifetime. Cleanup is guaranteed. Promises async fn() fetch() setTimeout() server.listen() ● still pending ● still ticking ● port still bound finally {} ? Effection function*() function*() spawned task fetch() setTimeout() server.listen() scope ends ✓ halted + cleaned up Async should just feel normal.
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Why JavaScript Needs Structured Concurrency

Structured programming tamed the chaos of early computing. Structured concurrency does the same for async — and Effection brings it to JavaScript.

Taras Mankovski's profile

Taras Mankovski

February 6, 2026

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Effection

Welcome to the Effection Blog

Introducing the new Effection blog - your source for tutorials, release announcements, and insights about structured concurrency in JavaScript.

Taras Mankovski's profile

Taras Mankovski

February 2, 2025