..:: 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        1194  0.5  0.5 1304972 84272 ?       Ssl  Oct24 434:45 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1200  1.0  0.8 11724800 142020 ?     Ssl  Oct24 780:10 node /home/sasa/dex8/dex8-api/starter.js
sasa        1208  0.4  0.4 1305000 73568 ?       Ssl  Oct24 313:21 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1224  1.0  0.7 11833576 115320 ?     Ssl  Oct24 747:23 node /home/sasa/dex8/dex8-www/server/index.js
sasa        1236  0.6  0.6 11811852 100600 ?     Ssl  Oct24 492:49 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1255  0.9  0.5 1330860 83840 ?       Ssl  Oct24 664:22 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa        1257  0.4  0.4 1301160 70352 ?       Ssl  Oct24 318:39 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.4  0.4 1297580 66352 ?       Ssl  Oct24 313:19 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  3.5  2.7 12143328 446332 ?     Ssl  Oct24 2604:27 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1449  0.4  0.3 1232360 65260 ?       Ssl  Oct24 329:21 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1528  2.0  2.7 33107276 445516 ?     Ssl  Oct24 1466:28 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1529  0.4  0.3 1100644 64512 ?       Ssl  Oct24 328:30 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1606  0.4  0.3 1100900 64840 ?       Ssl  Oct24 329:42 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1607  0.4  0.3 1101156 64844 ?       Ssl  Oct24 328:38 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1705  0.4  0.4 1101928 66416 ?       Ssl  Oct24 328:20 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1706  0.4  0.3 1101412 65144 ?       Ssl  Oct24 327:46 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1805  0.4  0.4 1168224 66632 ?       Ssl  Oct24 328:45 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1807  0.4  0.3 1100384 63520 ?       Ssl  Oct24 321:05 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1885  0.4  0.3 1099880 63912 ?       Ssl  Oct24 322:40 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1886  2.3  1.0 11861676 164508 ?     Ssl  Oct24 1740:41 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     2628167  1.0  0.8 1174332 131152 ?      Ssl  Nov04 575:44 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.7  0.6 11823608 98488 ?      Ssl  Nov06 427:58 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11800712 83276 ?      Ssl  Nov06 287:56 node /home/sasa/@mikosoft/dodo-examples/server/index.js
www-data 3226633  0.0  0.0   2608   592 ?        S    05:54   0:00 sh -c ps -aux | grep node
www-data 3226635  0.0  0.0   3304   712 ?        S    05:54   0:00 grep node