..:: Source code - 02callback_settimeout2.js ::..

/**
 * callback example
 */

function cb() {
  console.log('\n 1st callback is executed!');

  console.log('BEFORE 2nd CALLBACK');

  setTimeout(function () {
    console.log('\n 2nd callback is executed');
  }, 2000);

  console.log('AFTER 2nd CALLBACK');
}

console.log('BEFORE 1st CALLBACK');

setTimeout(cb, 3000);

console.log('AFTER 1st CALLBACK');



/*
$node 02callback_settimeout2
BEFORE 1st CALLBACK
AFTER 1st CALLBACK

 1st callback is executed!
BEFORE 2nd CALLBACK
AFTER 2nd CALLBACK

 2nd callback is executed
 */

..:: NodeJS Console - 02callback_settimeout2.js ::..

BEFORE 1st CALLBACK
AFTER 1st CALLBACK

 1st callback is executed!
BEFORE 2nd CALLBACK
AFTER 2nd CALLBACK

 2nd callback is executed

$ps -aux | grep node (list all node processes)
sasa         831  0.4  0.4 1301596 72912 ?       Ssl  Jun15   8:12 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa         843  0.4  0.6 11696520 101452 ?     Ssl  Jun15   7:32 node /home/sasa/dex8/dex8-api/starter.js
sasa         858  0.3  0.3 1034000 62228 ?       Ssl  Jun15   5:59 node /home/sasa/regoch/regoch-www/server
sasa         867  0.3  0.3 1292980 59500 ?       Ssl  Jun15   5:50 node /home/sasa/dex8/dex8-panel/server/index.js
sasa         886  0.8  0.5 11807896 89008 ?      Ssl  Jun15  13:44 node /home/sasa/dex8/dex8-www/server/index.js
sasa         888  0.3  0.4 11790616 74904 ?      Ssl  Jun15   6:18 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         904  0.6  0.5 1329612 82444 ?       Ssl  Jun15  10:41 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         910  0.3  0.3 1295860 64124 ?       Ssl  Jun15   5:52 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         969  0.3  0.3 1226436 57000 ?       Ssl  Jun15   5:47 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         970  0.4  0.5 11809840 90668 ?      Ssl  Jun15   8:15 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa        1010  0.4  0.5 1138968 92716 ?       Ssl  Jun15   7:33 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1016  0.6  0.6 11828632 113084 ?     Ssl  Jun15  10:46 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1086  0.3  0.4 11662560 76700 ?      Ssl  Jun15   6:12 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa        1089  0.3  0.4 1100892 66592 ?       Ssl  Jun15   6:03 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1159  0.3  0.4 1100896 66580 ?       Ssl  Jun15   6:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1160  0.3  0.3 1100892 65516 ?       Ssl  Jun15   6:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1241  0.3  0.3 1102488 64704 ?       Ssl  Jun15   5:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1242  0.3  0.4 22279356 79200 ?      Ssl  Jun15   6:16 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1323  0.3  0.3 1100892 65552 ?       Ssl  Jun15   6:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1324  0.3  0.4 1101152 65684 ?       Ssl  Jun15   6:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1398  0.3  0.4 1100896 65832 ?       Ssl  Jun15   5:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1400  0.3  0.4 1101148 65752 ?       Ssl  Jun15   6:02 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1465  0.3  0.4 1101152 65932 ?       Ssl  Jun15   5:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1475  0.3  0.6 11811364 106604 ?     Ssl  Jun15   6:38 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
www-data   84986  0.0  0.0   2608   532 ?        S    07:12   0:00 sh -c ps -aux | grep node
www-data   84988  0.0  0.0   3304   652 ?        S    07:12   0:00 grep node