JavaScript Iterator Helpers

Lazy `map`, `filter`, `take`, `drop` and other helpers on JavaScript iterators, added in ES2025, for working with generators and infinite sequences.

Content tagged iterator-helpers

• Post:What's New in ES2027: Temporal, using and More

  Temporal, using and five more confirmed ES2027 features.

  Every confirmed ES2027 feature as of November 2026: Temporal, using, Iterator.zip, chunks, windows, join, includes and Atomics.pause, with examples.

• Post:What's New in ES2026: Every Feature Explained

  Every ES2026 feature, with examples and browser support.

  Every ES2026 feature with examples: Map upsert, JSON.parse source text, Iterator.concat, Uint8Array Base64, Math.sumPrecise, Error.isError and Array.fromAsync.