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Speed Up Your JavaScript

Google TechTalks · talk · Watch on YouTube

Software performance & optimizationWeb development

What it is

A 2009 Google Tech Talk by Nicholas Zakas on the hidden performance pitfalls of JavaScript. It covers what is fast and slow in the language and how to avoid common bottlenecks.

Why Hacker News recommends it

Recommended as a classic JavaScript performance talk whose fundamentals about reflow and efficient code still apply.

  • 3 people recommended it
  • 3 different months
  • 0 strong recommendations
  • first 2012, last 2025

What HN commenters said

  1. “this Google Tech Talk by Nicholas Zakas about javascript performance.”

    Google Tech Talk on JavaScript performance.

    malandrew, 2012-02 · Recommendation · in “Ask HN: JavaScript Dev Tools”

  2. “Speed up your Javascript”

    Listed among classic JavaScript talks.

    tangue, 2014-01 · Recommendation · in “Wonderful Javascript Talks?”

  3. “the fundamental ideas are still the same.”

    Old talk with still-valid fundamentals on reflow and performance.

    RumourRider, 2025-07 · Recommendation · in “Don't animate height”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: javascript, performance, web performance, reflow, google tech talk

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