..:: 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  0.4  0.4 1302468 78684 ?       Ssl  Oct24  32:47 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1200  0.7  0.8 11718640 134040 ?     Ssl  Oct24  57:28 node /home/sasa/dex8/dex8-api/starter.js
sasa        1207  0.3  0.4 1301220 68504 ?       Ssl  Oct24  24:43 node /home/sasa/regoch/regoch-www/server
sasa        1208  0.3  0.4 1299336 65616 ?       Ssl  Oct24  23:27 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1224  0.7  0.5 11821092 95880 ?      Ssl  Oct24  55:13 node /home/sasa/dex8/dex8-www/server/index.js
sasa        1236  0.4  0.5 11811596 96392 ?      Ssl  Oct24  30:17 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1255  0.5  0.4 1328700 80820 ?       Ssl  Oct24  44:26 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa        1257  0.3  0.4 1301128 68640 ?       Ssl  Oct24  24:03 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.3 1296500 64096 ?       Ssl  Oct24  23:23 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1292  0.4  0.5 11822264 94428 ?      Ssl  Oct24  32:06 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa        1361  0.6  0.6 1154308 109428 ?      Ssl  Oct24  49:25 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1363  1.9  2.0 12102392 339660 ?     Ssl  Oct24 145:30 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1441  0.3  0.4 11793416 76408 ?      Ssl  Oct24  25:18 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa        1449  0.3  0.3 1165032 63612 ?       Ssl  Oct24  24:27 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1528  1.3  0.8 22320940 138908 ?     Ssl  Oct24 103:52 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1529  0.3  0.3 1099364 63668 ?       Ssl  Oct24  24:24 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1606  0.3  0.3 1098340 61824 ?       Ssl  Oct24  24:36 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1607  0.3  0.3 1099364 63624 ?       Ssl  Oct24  24:27 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1705  0.3  0.3 1099624 65492 ?       Ssl  Oct24  24:26 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1706  0.3  0.3 1099108 63268 ?       Ssl  Oct24  24:24 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1805  0.3  0.3 1099616 63504 ?       Ssl  Oct24  24:25 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1807  0.3  0.3 1099872 63700 ?       Ssl  Oct24  24:08 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1885  0.3  0.3 1099112 63220 ?       Ssl  Oct24  24:10 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1886  0.7  0.6 11815684 113880 ?     Ssl  Oct24  56:05 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
www-data 1151954  0.0  0.0   2608   592 ?        S    19:15   0:00 sh -c ps -aux | grep node
www-data 1151956  0.0  0.0   3304   660 ?        S    19:15   0:00 grep node