26 lines
908 B
JavaScript
26 lines
908 B
JavaScript
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const { sleep, once, delay, every, stream } = require("mhysa");
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async function main() {
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const collector = stream
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.concat(
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stream.fromArray(["a\n", "b\n", "c\n"]),
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stream.fromArray(["d", "e"]).pipe(stream.join("-")),
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)
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.pipe(stream.split("\n"))
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.pipe(stream.flatMap(s => [s, s.toUpperCase()]))
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.pipe(stream.collect({ objectMode: true }));
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const collected = await once(collector, "data");
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await sleep(1000); // undefined (after one second)
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console.log(await delay(collected, 1000)); // [ 'a', 'A', 'b', 'B', 'c', 'C', 'd-e', 'D-E' ] (after another second)
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await every(
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[Promise.resolve("ab"), delay("cd", 1000)],
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s => s.length === 2,
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); // true (after another second)
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await every(
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[Promise.resolve("ab"), delay("cd", 1000)],
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s => s.length === 1,
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); // false (instantly)
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}
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main();
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