..:: Source code - 018number_isNaN.js ::..

/**
 * Check if the result is NaN
 */

var y, tf;

y = parseInt('some text', 10);

tf = isNaN(y) ? 'Result is not number (NaN)' : 'Result is not NaN, probably is number.';

console.log(tf);
 

..:: NodeJS Console - 018number_isNaN.js ::..

$ node 018number_isNaN.js
Result is not number (NaN)
$ps -aux | grep node (list all node processes)
sasa        1208  0.3  0.4 1305000 73156 ?       Ssl   2025 1176:38 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1236  0.5  0.6 11821140 104284 ?     Ssl   2025 1859:01 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1257  0.3  0.4 1303048 70776 ?       Ssl   2025 1192:50 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.4 1297836 66480 ?       Ssl   2025 1174:49 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.3  2.6 12149728 436396 ?     Ssl   2025 14958:00 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  5.7  3.5 12248752 587060 ?     Rsl   2025 19747:02 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.3  0.7 22311168 125620 ?     Ssl   2025 934:50 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.4 1101568 65548 ?       Ssl   2025 841:48 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.4 1102340 67304 ?       Ssl   2025 840:13 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.4 1102056 66156 ?       Ssl   2025 846:43 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.4 1101316 65592 ?       Ssl   2025 842:29 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.4 1101184 66376 ?       Ssl   2025 839:46 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1166440 64724 ?       Ssl   2025 830:20 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1099872 64492 ?       Ssl   2025 827:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.6  0.7 11844444 124348 ?     Ssl   2025 1743:01 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.3 1101560 65316 ?       Ssl   2025 839:27 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1399960  0.8  0.6 11806812 109760 ?     Ssl  Apr20 722:45 node /home/sasa/dex8/dex8-www/server/index.js
sasa     1631573  0.4  0.4 1302812 79308 ?       Ssl  May31 123:50 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa     1904154  0.6  0.8 11864388 146872 ?     Ssl  Apr25 491:54 node /home/sasa/miko/miko-hr/server/index.js
sasa     2628167  0.8  0.8 1177308 132156 ?      Ssl   2025 2664:14 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.6  0.6 11834168 109540 ?     Ssl   2025 1988:48 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11799488 84608 ?      Ssl   2025 1655:44 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3264954  0.7  0.5 1359304 82676 ?       Ssl  Feb21 1204:24 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa     3809836  0.3  0.5 22307132 95808 ?      Ssl  Jun19   4:52 node /home/sasa/dex8/dex8-worker/starter.js
www-data 3931476  0.0  0.0   2608   528 ?        S    04:42   0:00 sh -c ps -aux | grep node
www-data 3931478  0.0  0.0   3304   716 ?        R    04:42   0:00 grep node