7.x release date?

When will 7.x be stable? We use and like iter-tools but would like to avoid upgrading to a release candidate in production.

Our biggest issues with 6.x are lack of a few functions (asyncFork, asyncSplitAt, asyncTakeSorted, asyncIsEmpty) and asyncFilter performance.

const n = 100000;
const evens = await iter.pipe(
  iter.range(n),
  iter.asyncFilter(async (n) => n % 2 == 0),
  iter.asyncToArray,
);

Takes 700ms on my machine, but takes a more reasonable 150ms with v7.0.0-rc.0. Replacing asyncFilter with

function asyncFilter<T>(predicate: (t: T) => iter.MaybePromise<boolean>) {
  return async function* (iterable: iter.AsyncIterableLike<T>) {
    for await (const i of iterable) {
      if (await predicate(i)) {
        yield i;
      }
    }
  };
}

makes that function take ~40ms.

[conartist6]

Just to report I’m working steadily on the full v7.0.0 now. To my goal of not including anything unsound I’m reworking regex-based splitting. Right now I’m putting together @iter-tools/regex for evaluating regular expressions in a fully streaming fashion against iterables, and that should then unblock the rest of the string refactoring work.

[conartist6]

It’s looking like it might be today or tomorrow!