JavaScript Weekly issue 780 covers Google open-sourcing JSIR, a high-level intermediate representation for JavaScript aimed at enabling better tooling like linters and bundlers. Also featured: a 2026 JavaScript landscape overview by Chris Coyier, a piece on using minimum package release age as a supply chain defense, and an exploration of modern CSS capabilities replacing JavaScript for UI tasks. Releases include ESLint v10.2.0 with language-aware rules, Node.js 25.9.0 with a new iterable streams API, npm-check-updates v20, and several Vue 3 libraries.
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