Test JS script file

Selected file: 22var_undefined.js
Compare console.log() outputs in browser and NodeJS.
Notice: Open browser's console in FireBUG!

  1. 01var_identifier.js
  2. 03var_data_types.js
  3. 03var_data_types_novar.js
  4. 04var_primitiveToObject.js
  5. 05var_string_object.js
  6. 06var_converting_data_types.js
  7. 10var_local_global_outside_function.js
  8. 12var_local_global_inside_function.js
  9. 13var_local_global_inside_function2.js
  10. 14var_local_global_return.js
  11. 16var_global_browser.js
  12. 16var_global_node.js
  13. 20var_Infinity.js
  14. 21var_NaN.js
  15. 22var_undefined.js
  16. 22var_undefined2.js
  17. 23var_empty_string.js
  18. 23var_null_obj.js

..:: Source code - 22var_undefined.js ::..

/**
 * undefined value
 */

var name; //not yet defined variable

var type=typeof name;

//browser - string:
//nodeJS - undefined: undefined
console.log(type +': '+ name);
 

..:: NodeJS Console - 22var_undefined.js ::..

$ node 22var_undefined.js 
undefined: undefined

$ps -aux | grep node (list all node processes)
sasa        1208  0.3  0.4 1309920 74948 ?       Ssl   2025 1332:51 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1236  0.5  0.6 11827280 101896 ?     Ssl   2025 2104:16 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1257  0.3  0.4 1306632 70968 ?       Ssl   2025 1349:23 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.4 1301520 69696 ?       Ssl   2025 1329:43 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.1  3.3 12285876 543324 ?     Ssl   2025 16507:33 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  6.5  3.6 12258920 594784 ?     Ssl   2025 25970:46 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.3  0.7 22311168 125356 ?     Ssl   2025 1107:36 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.3 1101312 65484 ?       Ssl   2025 1007:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.4 1101060 66300 ?       Ssl   2025 1005:32 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.4 1101544 66524 ?       Ssl   2025 1013:30 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.3 1101316 65084 ?       Ssl   2025 1008:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.4 1100928 65780 ?       Ssl   2025 1004:57 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1166440 65452 ?       Ssl   2025 996:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1100128 64780 ?       Ssl   2025 991:33 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.7  0.7 11844964 125496 ?     Ssl   2025 2150:50 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.4 1101560 65752 ?       Ssl   2025 1004:52 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1399960  0.8  0.6 11807836 110784 ?     Ssl  Apr20 1154:44 node /home/sasa/dex8/dex8-www/server/index.js
sasa     1631573  0.4  0.4 1303240 80372 ?       Ssl  May31 353:07 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa     1904154  0.6  0.8 11833972 135240 ?     Ssl  Apr25 885:55 node /home/sasa/miko/miko-hr/server/index.js
sasa     2628167  0.7  0.8 1176284 131516 ?      Ssl   2025 3008:09 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.6  0.6 11836932 113668 ?     Ssl   2025 2331:18 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11799488 84184 ?      Ssl   2025 1906:31 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3264954  0.7  0.5 1332936 86720 ?       Ssl  Feb21 1550:27 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa     3407030  0.3  0.5 22291672 95652 ?      Ssl  Jul23   8:24 node /home/sasa/dex8/dex8-worker/starter.js
www-data 3610465  0.0  0.0   2608   600 ?        S    01:56   0:00 sh -c ps -aux | grep node
www-data 3610467  0.0  0.0   3304   708 ?        S    01:56   0:00 grep node