How to chain write stream, immediately with a read stream in Node.js 0.10?

Question

The following line will download an image file from a specified url variable:

var filename = path.join(__dirname, url.replace(/^.*[\\\\\\/]/, \'         


        

Answer 1

// create 'fs' module variable
var fs = require("fs");

// open the streams
var readerStream = fs.createReadStream('inputfile.txt');
var writerStream = fs.createWriteStream('outputfile.txt');

// pipe the read and write operations
// read input file and write data to output file
readerStream.pipe(writerStream);