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20 lines
388 B
JavaScript
20 lines
388 B
JavaScript
"use strict";
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const simpleSource = require("@promistream/simple-source");
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const EndOfStream = require("@promistream/end-of-stream");
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module.exports = function rangeNumbers(start, end, step = 1) {
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/* End is exclusive */
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let i = start;
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return simpleSource(() => {
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if (i >= end) {
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throw new EndOfStream();
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} else {
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let number = i;
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i += step;
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return number;
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}
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});
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};
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