..:: 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  0.5  0.5 1304844 82804 ?       Ssl   2025 1059:01 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1208  0.3  0.4 1305000 73188 ?       Ssl   2025 760:14 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1224  0.8  0.7 11835256 116364 ?     Ssl   2025 1679:19 node /home/sasa/dex8/dex8-www/server/index.js
sasa        1236  0.5  0.6 11817016 107668 ?     Ssl   2025 1202:39 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1257  0.3  0.4 1304920 73764 ?       Ssl   2025 771:45 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.4 1301872 71672 ?       Ssl   2025 758:49 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.4  2.7 12142972 453048 ?     Ssl   2025 9382:59 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  3.2  2.0 12007352 331420 ?     Ssl   2025 6861:31 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.4  0.7 22311424 126388 ?     Ssl   2025 469:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.3 1100800 64828 ?       Ssl   2025 397:42 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.4 1101572 65856 ?       Ssl   2025 396:43 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.3 1101032 65116 ?       Ssl   2025 399:27 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.3 1100804 64504 ?       Ssl   2025 397:39 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.4 1101952 67360 ?       Ssl   2025 396:36 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1100136 64204 ?       Ssl   2025 390:54 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1099872 63008 ?       Ssl   2025 389:20 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.7  0.7 11708808 124528 ?     Ssl   2025 832:47 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.4 1102584 65940 ?       Ssl   2025 396:08 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1953746  0.3  0.3 1095260 58772 ?       Ssl  03:03   0:02 node /home/sasa/dex8/dex8-worker/starter.js
www-data 1954599  0.0  0.0   2608   588 ?        S    03:12   0:00 sh -c ps -aux | grep node
www-data 1954601  0.0  0.0   3304   720 ?        S    03:12   0:00 grep node
sasa     2509059  0.5  0.6 11825888 102984 ?     Ssl  Feb14 278:20 node /home/sasa/miko/miko-hr/server/index.js
sasa     2628167  0.8  0.8 1177688 134100 ?      Ssl   2025 1689:40 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.6  0.6 11822992 98368 ?      Ssl   2025 1209:37 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11799176 84760 ?      Ssl   2025 989:05 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3264954  0.6  0.5 1330104 82732 ?       Ssl  Feb21 233:13 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js