Iterator helpers, Promise.try, Set methods, Regex /v flag. ES2025 is the densest update since ES6. Full tour with real use cases.
Finalized June 2025 by TC39, ES2025 is JavaScript's biggest update since ES6 modules.
Lazy iterators natively chainable. No more Lodash for 80% of cases.
Unifies sync and async in the same chain.
Set arithmetic at the language level: union, intersection, difference, isSubsetOf.
Unicode classes with set operations. Big progress for multilingual text.
Concrete tour of TypeScript 5.7 features, with patterns I adopted and those I skipped.
Three years after the tease, one year after Next.js 15. Production feedback on RSC: what really works and what still breaks.
A year after Bun 1.2 and the runtime explosion, here is the field verdict: who to pick for what, and when hype misleads.
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