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  0.5  0.5 1304728 83648 ?       Ssl  Oct24 549:43 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1208  0.4  0.4 1305000 73304 ?       Ssl  Oct24 397:14 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1224  0.9  0.7 11828936 118564 ?     Ssl  Oct24 927:05 node /home/sasa/dex8/dex8-www/server/index.js
sasa        1236  0.6  0.6 11815480 99344 ?      Ssl  Oct24 625:53 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1255  0.8  0.5 1330860 84588 ?       Ssl  Oct24 854:03 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa        1257  0.4  0.4 1304664 72576 ?       Ssl  Oct24 404:17 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.4  0.3 1295532 63836 ?       Ssl  Oct24 396:38 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  4.1  2.8 12154748 463572 ?     Ssl  Oct24 4046:05 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1886  2.5  1.1 11877056 182020 ?     Ssl  Oct24 2519:33 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1214480  0.3  0.3 1099400 64620 ?       Ssl  Dec28  11:33 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214483  0.3  0.3 1099264 64184 ?       Ssl  Dec28  11:32 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214536  0.3  0.3 1099268 64204 ?       Ssl  Dec28  11:29 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214544  0.3  0.3 1099496 64144 ?       Ssl  Dec28  11:36 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214588  0.3  0.3 1099012 63604 ?       Ssl  Dec28  11:32 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214617  0.3  0.3 1099392 64404 ?       Ssl  Dec28  11:32 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214641  0.3  0.3 1099368 63716 ?       Ssl  Dec28  11:19 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1214671  0.3  0.3 1099104 63208 ?       Ssl  Dec28  11:15 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1215731  0.4  0.7 11701572 115568 ?     Ssl  Dec28  15:18 node /home/sasa/dex8/dex8-api/starter.js
sasa     1216489  0.3  0.3 1099256 64196 ?       Ssl  Dec28  11:26 node /home/sasa/dex8/dex8-worker/starter.js
sasa     1362956  0.3  0.3 1099360 63800 ?       Ssl  Dec30   4:39 node /home/sasa/dex8/dex8-worker/starter.js
www-data 1465213  0.0  0.0   2608   532 ?        S    01:59   0:00 sh -c ps -aux | grep node
www-data 1465215  0.0  0.0   3304   648 ?        S    01:59   0:00 grep node
sasa     2628167  0.9  0.7 1176936 130820 ?      Ssl  Nov04 799:15 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.7  0.5 11815844 97908 ?      Ssl  Nov06 575:42 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.5  0.5 11798920 83460 ?      Ssl  Nov06 407:46 node /home/sasa/@mikosoft/dodo-examples/server/index.js