🚀 Make Heavy JavaScript Non-Blocking — 7 Battle-Tested Patterns (2025)
Aleksei Aleinikov

Aleksei Aleinikov @aleksei_aleinikov

About: My interests range from building complex algorithms and designing high-performance systems to applying AI to solve real-world challenges.

Location:
Thessaloniki, Greece
Joined:
Mar 17, 2025

🚀 Make Heavy JavaScript Non-Blocking — 7 Battle-Tested Patterns (2025)

Publish Date: Jun 14
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Your UI runs on a single thread.

A single heavy task = blocked input, choppy scroll, angry users.

This practical guide shows 7 ways to slice up heavy logic without freezing the browser:

  • setTimeout() loops ✅
  • await scheduler.postTask() for precision ⏳
  • requestAnimationFrame() for frame-aware execution
  • Web Workers for offloading entirely 🚀
  • Even MessageChannel for micro-delay control

🎯 Clear examples, pros/cons, and when to use each.

📘 Keep your app snappy in 2025 — start here: https://levelup.gitconnected.com/keep-the-ui-smooth-7-ways-to-slice-heavy-javascript-work-2025-guide-c52bca03165e

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