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Web & Frontend

The most popular blog posts about web & frontend on Hacker News. 377 posts.

2026
72

How ChatGPT serves ads

OpenAI's ad platform has two halves. On the ChatGPT side, the backend injects structured single_advertiser_ad_unit objects into the conversation SSE stream while the model is responding. On the merchant side, a tracking SDK called OAIQ runs in the visitor's browser and reports product views back

74

CSS is DOOMed

Every wall, floor, barrel, and imp is a div — DOOM rendered entirely in CSS. Using 3D transforms, CSS math functions, @property, clip-path, anchor positioning, and SVG filters to build a fully playable 3D first-person shooter in the browser without Canvas or WebGL.

88

Date is out, Temporal is in

Temporal is the Date system we always wanted in JavaScript. It's extremely close to being available so Mat Marquis thought it would be a good idea to explain exactly what is better about this new JavaScript date system.