Combine multiple files into one file in order based on multistream. It's a promise version that applies to merging large files that taking long time.
npm i merge-files
import mergeFiles from 'merge-files';
const outputPath = __dirname + '/result.txt';
const inputPathList = [
__dirname + '/1.txt',
__dirname + '/2.txt',
__dirname + '/3.txt'
];
// status: true or false
const status = await mergeFiles(inputPathList, outputPath);
// or
mergeFiles(inputPathList, outputPath).then((status) => {
// next
});