..:: 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 1304444 82412 ?       Ssl   2025 1059:24 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1208  0.3  0.4 1305000 73644 ?       Ssl   2025 760:31 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1224  0.8  0.7 11840448 121580 ?     Ssl   2025 1679:51 node /home/sasa/dex8/dex8-www/server/index.js
sasa        1236  0.5  0.6 11817016 107224 ?     Ssl   2025 1203:05 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1257  0.3  0.4 1304920 74164 ?       Ssl   2025 772:02 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.4 1301872 71288 ?       Ssl   2025 759:06 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.4  2.9 12168316 475524 ?     Ssl   2025 9386:30 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  3.2  2.0 12007352 331404 ?     Ssl   2025 6865:39 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.4  0.7 22311424 125864 ?     Ssl   2025 469:21 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.3 1100800 65108 ?       Ssl   2025 398:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.4 1102852 67028 ?       Ssl   2025 397:01 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.4 1102312 66884 ?       Ssl   2025 399:45 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.3 1100804 64020 ?       Ssl   2025 397:57 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.4 1100928 65808 ?       Ssl   2025 396:54 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1100648 64720 ?       Ssl   2025 391:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1100640 63652 ?       Ssl   2025 389:38 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.7  0.7 11708808 124172 ?     Ssl   2025 833:17 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.3 1100792 65032 ?       Ssl   2025 396:26 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1953746  0.3  0.3 1096796 61168 ?       Ssl  03:03   0:20 node /home/sasa/dex8/dex8-worker/starter.js
www-data 1962626  0.0  0.0   2608   592 ?        S    04:45   0:00 sh -c ps -aux | grep node
www-data 1962628  0.0  0.0   3304   708 ?        S    04:45   0:00 grep node
sasa     2509059  0.5  0.5 11803616 94868 ?      Ssl  Feb14 278:48 node /home/sasa/miko/miko-hr/server/index.js
sasa     2628167  0.8  0.8 1177688 134024 ?      Ssl   2025 1690:20 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.6  0.5 11801232 91260 ?      Ssl   2025 1210:07 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11799176 84976 ?      Ssl   2025 989:33 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3264954  0.6  0.5 1330104 82208 ?       Ssl  Feb21 233:49 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js