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        1194  0.4  0.5 1305996 86524 ?       Ssl   2025 1292:39 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1208  0.3  0.4 1304488 73056 ?       Ssl   2025 930:48 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1236  0.5  0.6 11819604 107212 ?     Ssl   2025 1472:03 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1257  0.3  0.4 1304920 73220 ?       Ssl   2025 944:26 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.3  0.4 1297836 67960 ?       Ssl   2025 929:22 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.5  2.7 12143228 446780 ?     Ssl   2025 12056:07 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  4.0  2.7 12116568 449848 ?     Ssl   2025 10657:44 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.3  0.7 22311168 125220 ?     Ssl   2025 660:31 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.4 1101568 65752 ?       Ssl   2025 580:13 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.4 1101060 66112 ?       Ssl   2025 578:56 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.4 1103080 67692 ?       Ssl   2025 583:02 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.3 1100804 64044 ?       Ssl   2025 580:10 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.4 1100672 65576 ?       Ssl   2025 578:40 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1100648 65232 ?       Ssl   2025 570:09 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1100384 63796 ?       Ssl   2025 568:02 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.6  0.7 11708988 123344 ?     Ssl   2025 1133:54 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.3 1100536 65136 ?       Ssl   2025 578:09 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1399960  0.7  0.6 11849184 107684 ?     Ssl  Apr20  58:42 node /home/sasa/dex8/dex8-www/server/index.js
sasa     1904154  0.4  0.7 11828184 115716 ?     Ssl  Apr25   5:12 node /home/sasa/miko/miko-hr/server/index.js
sasa     1979731  0.3  0.3 1095772 60064 ?       Ssl  04:03   0:06 node /home/sasa/dex8/dex8-worker/starter.js
www-data 1982025  0.0  0.0   2608   596 ?        S    04:33   0:00 sh -c ps -aux | grep node
www-data 1982027  0.0  0.0   3304   720 ?        S    04:33   0:00 grep node
sasa     2628167  0.8  0.8 1176664 131780 ?      Ssl   2025 2113:12 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.6  0.5 11803144 91232 ?      Ssl   2025 1526:36 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11799176 84552 ?      Ssl   2025 1262:21 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3264954  0.6  0.5 1332748 86836 ?       Ssl  Feb21 637:03 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js