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Iterator Chunking

for Stage 2.7

Michael Ficarra • TC39 • September 2025

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reminder: proposal as previously presented

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feedback: single method / rename methods

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chosen solution: combined method, string parameter

UNCHANGED

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source: https://www.vecteezy.com/vector-art/1226455-breaking-live-news-background

KEBAB CASE OUTBREAK AT LOCAL INTL STANDARDS COMMITTEE

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late change: follow precedent from Atomics and Base64

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Stage 2.7?

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speaker's summary

  • as discussed last plenary, combined windows/sliding into a single method
    • adds an "undersized" parameter to the windows method
    • value can be omitted, "only-full", or "allow-partial"
    • defaults to "only-full"
    • keeps the door open for a future options bag if more options are desired
  • didn't request re-review from Stage 2 assigned reviewers
    • change is small and the merged PR was discussed in plenary
  • made a last-minute change to follow de facto kebab-case convention
  • requested Stage 2.7