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36 lines
801 B
JavaScript
36 lines
801 B
JavaScript
"use strict";
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const Promise = require("bluebird");
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const pipe = require("@promistream/pipe");
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const dynamic = require("./");
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const rangeNumbers = require("@promistream/range-numbers");
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const map = require("@promistream/map");
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const filter = require("@promistream/filter");
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const collect = require("@promistream/collect");
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const parallelize = require("@promistream/parallelize");
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function createMap() {
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return map((number) => number * 2);
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}
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function createFilter() {
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return filter(() => false);
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}
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return Promise.try(() => {
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return pipe([
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rangeNumbers(0, 10),
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dynamic((number) => {
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if (number % 2 === 0) {
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return createMap;
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} else {
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return createFilter;
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}
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}),
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parallelize(3),
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collect()
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]).read();
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}).then((result) => {
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console.log(result); // [ 0, 4, 8, 12, 16 ]
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});
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