Merging Streams: Merging Text Files
Explore how to merge multiple text files into a single output file using Node.js streams. Understand handling the end event properly to avoid stream errors and learn techniques for controlled stream merging, including a line-by-line merging example with practical code.
We'll cover the following...
We'll cover the following...
Merging is the opposite operation to forking and involves piping a set of Readable streams into a single Writable stream, as shown in the illustration given below.
Merging streams
Merging multiple streams into one is, in general, a simple operation; however, we have to pay attention to the way we handle the end event because piping using the default options (according to which {end:true}) causes the destination stream to end as soon as one of the sources ends. This can often lead ...