So, what’s new in ES2025?
summary
A concise tour of concrete forthcoming features and their status: native Temporal date API with polyfills and cookbooks, Stage‑4 additions like findLast and at, import assertions/JSON modules shipping in Node, and ongoing work on Records and Tuples plus iterator helpers and change‑by‑copy. Notes on implementation: V8 and SpiderMonkey drive progress, Test262 tests gate stage‑4, and Babel/TypeScript provide transpiles today. Demos focus on precise semantics, compat implications, and whether prototypes and polyfills actually work in current runtimes.
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chapters (16)
- 0:00Start
- 6:06Disclaimer
- 7:26Capturing Groups
- 8:47Class Fields
- 9:51Static Initializer Blocks
- 10:34Indirect Indexing Operator
- 13:53Tempo
- 16:20Array Grouping
- 16:53Import Assertions and Json Modules
- 17:44Json Modules
- 21:31Decorators
- 22:24Shadow Realms
- 24:46Collection Normalization
- 29:04Extended Mode Regular Expression
- 29:19Policy Maps and Sets
- 29:59Functional Programming
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