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The Cost Of JavaScript - 2023

Addy Osmani 34 min Published Jun 2023

This video is about 3 years old. Search advice changes quickly, so check this against current guidance.

About this video

The cost of JavaScript is highest on mobile and lower-end desktops, Addy Osmani explains, along with why small bundles help downloads.

Good to know: A developer talk with no SEO angle

Why watch it

On mobile and lower-end machines, JavaScript costs the most of anything a site sends. Addy Osmani explains why, and how to keep bundles small. A developer talk with no SEO angle.

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