Level Up Your React Development: Unveiling the Gems of ECMAScript 2024 (ES15)
summary
ES2024 packs concrete, usable additions and a few still-experimental pieces: string methods isWellFormed/toWellFormed detect and fix lone UTF‑16 surrogates; concurrency gains include Atomics.waitAsync plus resizable SharedArrayBuffer for nonblocking worker sync; new collection helpers like object.groupBy and Map.prototype.groupBy and Set methods (difference, intersection, union, symmetric difference) simplify grouping and set math; Promise.withResolvers gives external resolve/reject handles. Temporal and pattern matching remain experimental and browser support (Firefox delays on some Stage 4 features) varies, so check compatibility.
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chapters (10)
- 0:00Introduction and goals
- 4:58ECMAScript standards process
- 16:38Stage progression and timelines
- 19:30Well-formed Unicode strings
- 20:52Atomics waitAsync method
- 24:47Object grouping methods
- 27:56Promise withResolvers
- 30:49Temporal API overview
- 35:42New set methods
- 38:10Q&A and closing
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