The Future of JavaScript: What Awaits Us
4 days ago
- #JavaScript
- #TC39
- #Deno
- JavaScript is evolving rapidly with contributions from TC39 and teams like Deno.
- Recent TC39 meeting advanced nine proposals across different stages.
- Stage 4 features include Explicit Resource Management with `using` and `await using` keywords for deterministic cleanup.
- `Array.fromAsync` allows working with async iterables to return a Promise resolving to an array.
- `Error.isError` provides a reliable way to detect errors across realms or inheritance.
- Stage 3 introduces Immutable ArrayBuffer for safe, immutable binary data handling.
- Stage 2 drafts include deterministic randomness with `Random.Seeded` and `Number.prototype.clamp` for value clamping.
- Stage 1 proposals cover trailing zeros in `Intl.NumberFormat`, standardized comparisons, and a Random namespace for convenience.
- Deno integrates these changes early to demonstrate real-world benefits.
- Next TC39 meeting is scheduled for late September to continue discussions on these proposals.