t-readable/lib/index.js

Split a readable-stream into 2 or more readable-streams

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const stream_1 = require("stream");
/**
 * Tee given Readable in `count` Readable streams
 * @param readable - Stream to tee
 * @param count - Number of readable streams, default is 2
 * @return Array with count readable streams
 */
function tee(readable, count = 2) {
    const clones = [];
    for (let i = 0; i < count; ++i) {
        clones.push(new stream_1.PassThrough());
    }
    readable.on('data', chunk => {
        clones.forEach(clone => {
            clone.write(chunk);
        });
    });
    readable.on('end', () => {
        clones.forEach(clone => {
            clone.end();
        });
    });
    return clones;
}
exports.tee = tee;
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