@thi.ng/rstream/iterable.js

Reactive streams & subscription primitives for constructing dataflow graphs / pipelines

import { __optsWithID } from "./idgen.js";
import { stream } from "./stream.js";
const fromIterable = (src, opts = {}) => stream((stream2) => {
  const iter = src[Symbol.iterator]();
  const id = setInterval(() => {
    let val;
    if ((val = iter.next()).done) {
      clearInterval(id);
      stream2.closeIn !== "never" && stream2.done();
    } else {
      stream2.next(val.value);
    }
  }, opts.delay || 0);
  return () => clearInterval(id);
}, __optsWithID("iterable", opts));
const fromIterableSync = (src, opts) => stream((stream2) => {
  for (let s of src) {
    stream2.next(s);
  }
  stream2.closeIn !== "never" && stream2.done();
}, __optsWithID("iterable-sync", opts));
export {
  fromIterable,
  fromIterableSync
};