September 7, 2023 at 5:28:51 PM UTC

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There are new Array APIs that don’t mutate!

`toReversed`
`toSorted`
`toSpliced`
`with`

(already in Safari 16 and Node 20+)

9 replies

Zach Leatherman 2 min later

There are new Set methods coming for `intersection`, `difference`, `isSubsetOf`, `union`!
Not yet available anywhere yet but I am so ready for these 🏆
1. Zach Leatherman 3 min later
  
  ShadowRealm for sandboxed JavaScript execution will be very helpful in WebC too 👍🏻
  https://github.com/tc39/proposal-shadowrealm
2. Brantley Harris 6 min later
  
  @zachleat Oh that's super nice.
3. Private reply 8 min later
4. vincent 28 min later
  
  @zachleat omfg.
5. Alex R 23 hr later
  
  @zachleat I always forget those aren’t there already – it’s sort of like having numbers but no arithmetic operations
Erik Rasmussen ☑️ 28 min later

@zachleat toSorta feels like they should have dummies of the existing non-mutating ones, for "consistency”. e.g. toSlice(), toConcat(), etc.
1. Zach Leatherman 1 hr later
  
  @erikras seems logical to me!
Christophe Porteneuve 3 hr later

@zachleat .with() is by far the greatest DX upgrade of that gang.
Also this is in Cr/Edge 110+, Fx 115+, Deno too. All modern browsers have it.