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TC39 Iterator Helpers Are Now Baseline 2026: Replace Your Lodash Chains With Native Lazy Iteration
September 20, 2026
Iterator helpers shipped in ES2025 and reached Baseline 2026. They eliminate intermediate arrays, run lazily by default, and replace most Lodash chains with native JavaScript. Teams can drop dependencies and ship faster code.
React 20 ref Cleanup Functions: The Return Value That Finally Fixes Your Event Listener Leaks
September 19, 2026
React 20's ref cleanup return value eliminates the useEffect boilerplate that caused most DOM event listener memory leaks. Learn when ref cleanup replaces useEffect and when it does not.
Next.js Caching Mental Model in 2026: Request Memoization, Data Cache, Full Route Cache, and Router Cache Explained Once and for All
September 18, 2026
Most Next.js caching confusion stems from conflating four distinct layers. This post builds the mental model teams need to ship fast, cacheable apps in 2026.
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