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35 lines
760 B
JavaScript
35 lines
760 B
JavaScript
"use strict";
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const Promise = require("bluebird");
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const preReader = require("./");
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const pipe = require("@promistream/pipe");
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const rangeNumbers = require("@promistream/range-numbers");
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let prereadingPipeline = pipe([
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rangeNumbers(0, 3),
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preReader()
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]);
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return Promise.try(() => {
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return prereadingPipeline.read();
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}).then((result) => {
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console.log(result); // null
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return prereadingPipeline.read();
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}).then((result) => {
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console.log(result); // 0
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return prereadingPipeline.read();
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}).then((result) => {
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console.log(result); // 1
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return prereadingPipeline.read();
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}).then((result) => {
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console.log(result); // 2
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return prereadingPipeline.read();
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}).catch((err) => {
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console.error(err); // EndOfStream: There is no more data to read
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});
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