P-Map Files

New

• Add pMapSettled, pMapKeyed, and pMapSettledKeyed (#70) a05fd50
  • pMapSettled is like Promise.allSettled(), with a mapper and a concurrency limit
  • pMapKeyed and pMapSettledKeyed map the values of an object or a Map, like Promise.allKeyed() and Promise.allSettledKeyed()
• Add pMapStop to stop iterating from the mapper, like break in a loop (#31) 27606f0
• Add preserveOrder option to pMapIterable (#72) 2c0934b
  • Set it to false to get each result as soon as it is ready, instead of in input order
• Make pMapIterable read ahead while the mappers run when backpressure is above concurrency (#78) cada71d
  • A slow input no longer leaves a mapper waiting for its next element. With the default backpressure, nothing changes

Improvements

• Keep the caller in the stack trace of mapper errors (#34) 595754b
• Make pMapIterable consume its results in linear time 7d5b6e1
  • It was O(n²) when backpressure let many results wait, which is the default
• Reduce the per-element promise overhead ef82ce6
• Give a nullish input the same TypeError as any other invalid input 6f4643d

Fixes

• Fix handling of a source that settles its next() calls out of call order 415a474
  • The index and the result position now follow the order of the next() calls
  • With stopOnError: false, the errors in the AggregateError are now in input order, not in the order they happened
• Fix pMapIterable dropping earlier results when a mapper throws while they are still being read 27606f0
  • The results before the error are now yielded first, like in a loop
• Fix pMapSkip results not counting toward backpressure in pMapIterable 7d5b6e1
  • A mapper that skips most elements no longer reads further ahead than backpressure allows
• Fix pMapIterable pulling and mapping input after return() or throw() while a next() call is pending 5f2c01d

https://github.com/sindresorhus/p-map/compare/v7.0.8...v7.1.0