..:: Source code - fs-async3.js ::..

/*
Third way of writing fs-async.js
 */

//load modules
var fs = require('fs');


var callback = {
	kallme: function(err, content){
				console.log(content);
			}
}

//asynchronous file reading
fs.readFile('./testfiles/largefile800mb.txt', callback.kallme);

console.log('Do something else!');
 

..:: NodeJS Console - fs-async3.js ::..

$ node fs-async3.js
Do something else!
undefined
$ps -aux | grep node (list all node processes)
sasa         831  0.4  0.4 1300504 71432 ?       Ssl  Jun15   6:50 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa         843  0.4  0.6 11696264 100592 ?     Ssl  Jun15   6:14 node /home/sasa/dex8/dex8-api/starter.js
sasa         858  0.3  0.3 1032208 61016 ?       Ssl  Jun15   4:58 node /home/sasa/regoch/regoch-www/server
sasa         867  0.3  0.3 1292724 58920 ?       Ssl  Jun15   4:52 node /home/sasa/dex8/dex8-panel/server/index.js
sasa         886  0.7  0.5 11813560 96056 ?      Ssl  Jun15  10:56 node /home/sasa/dex8/dex8-www/server/index.js
sasa         888  0.3  0.4 11789848 74044 ?      Ssl  Jun15   5:15 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         904  0.6  0.5 1329612 82252 ?       Ssl  Jun15   8:54 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         910  0.3  0.3 1296900 64736 ?       Ssl  Jun15   4:51 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         969  0.3  0.3 1027636 54740 ?       Ssl  Jun15   4:48 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         970  0.4  0.5 11824892 97676 ?      Ssl  Jun15   6:42 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa        1010  0.4  0.5 1138712 92388 ?       Ssl  Jun15   6:11 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1016  0.6  0.6 11816504 108332 ?     Ssl  Jun15   8:41 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1086  0.3  0.4 11595744 74428 ?      Ssl  Jun15   5:10 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa        1089  0.3  0.3 1099356 64008 ?       Ssl  Jun15   5:02 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1159  0.3  0.3 1099360 64924 ?       Ssl  Jun15   5:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1160  0.3  0.3 1099356 63868 ?       Ssl  Jun15   5:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1241  0.3  0.3 1100696 62460 ?       Ssl  Jun15   4:58 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1242  0.3  0.4 22275868 74896 ?      Ssl  Jun15   5:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1323  0.3  0.3 1099356 63808 ?       Ssl  Jun15   5:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1324  0.3  0.3 1099360 63424 ?       Ssl  Jun15   4:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1398  0.3  0.3 1099360 63232 ?       Ssl  Jun15   4:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1400  0.3  0.3 1099356 63628 ?       Ssl  Jun15   5:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1465  0.3  0.3 1099360 64068 ?       Ssl  Jun15   4:57 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1475  0.4  0.7 11838336 120036 ?     Ssl  Jun15   5:32 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
www-data   69466  0.0  0.0   2608   536 ?        S    02:30   0:00 sh -c ps -aux | grep node
www-data   69468  0.0  0.0   3304   660 ?        S    02:30   0:00 grep node