javascript - Node Stream: Not passing Callback Function a Value -
javascript - Node Stream: Not passing Callback Function a Value - i working on nodeschool.io's learnyounode http client exercise. this task: write programme performs http request url provided first command-line argument. write string contents of each "data" event response new line on console (stdout). my solution was: var http = require("http"); var url = process.argv[2]; http.get(url, function(res){ res.setencoding('utf8'); res.on('data', function(data){ console.log(data); }) }); this worked, curious why suggested solution works. how console.log , console.error using data or error objects. don't appear passed callback function. var http = require('http') http.get(process.argv[2], function (response) { response.setencoding('utf8') response.on('data', console.log) response.on('error', console.error) }) by using response.on('data', co