..:: Source code - 23var_null_obj.js ::..

/**
 * defininig null object
 */

x = 23;
x = null; //redefine variable x to null object
var type=typeof x;

console.log(type +': '+ x); //object: null


if(x==null) console.log('x is null'); //works
else if(x=='') console.log('x is empty string'); //dont work

..:: NodeJS Console - 23var_null_obj.js ::..

object: null
x is null

$ps -aux | grep node (list all node processes)
sasa        1194  0.4  0.5 1305952 86436 ?       Ssl   2025 1406:11 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1208  0.3  0.4 1304488 73436 ?       Ssl   2025 999:32 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1236  0.5  0.6 11818960 105940 ?     Ssl   2025 1579:45 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1257  0.3  0.4 1305176 73812 ?       Ssl   2025 1013:43 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.4 1298028 68540 ?       Ssl   2025 998:13 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.5  2.6 12138108 440592 ?     Ssl   2025 13027:28 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  4.4  3.0 12167572 505600 ?     Ssl   2025 12686:46 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.3  0.7 22311168 125916 ?     Ssl   2025 737:24 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.4 1103104 67240 ?       Ssl   2025 653:29 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.4 1101060 65616 ?       Ssl   2025 652:05 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.3 1101032 65048 ?       Ssl   2025 656:52 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.3 1101316 64636 ?       Ssl   2025 653:34 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.4 1100672 65732 ?       Ssl   2025 651:43 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1100648 64428 ?       Ssl   2025 642:09 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1100128 63488 ?       Ssl   2025 639:51 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.7  0.7 11714140 130004 ?     Ssl   2025 1431:29 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.4 1102072 66060 ?       Ssl   2025 651:07 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1399960  0.8  0.6 11826780 114248 ?     Ssl  Apr20 251:27 node /home/sasa/dex8/dex8-www/server/index.js
sasa     1904154  0.6  0.7 11838544 117916 ?     Ssl  Apr25 142:52 node /home/sasa/miko/miko-hr/server/index.js
sasa     2628167  0.8  0.7 1175384 130208 ?      Ssl   2025 2274:32 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.6  0.6 11817672 101252 ?     Ssl   2025 1656:55 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11799176 84700 ?      Ssl   2025 1372:11 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3264954  0.7  0.5 1332492 86316 ?       Ssl  Feb21 798:17 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa     3652070  0.3  0.4 1100640 65576 ?       Ssl  04:03   1:19 node /home/sasa/dex8/dex8-worker/starter.js
www-data 3681427  0.0  0.0   2608   528 ?        S    10:54   0:00 sh -c ps -aux | grep node
www-data 3681429  0.0  0.0   3304   716 ?        S    10:54   0:00 grep node