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         849  0.5  0.5 1316608 85708 ?       Ssl  Oct08 282:32 node /home/sasa/regoch/regoch-www/server
sasa         880  0.4  0.5 1319240 87740 ?       Ssl  Oct08 235:18 node /home/sasa/dex8/dex8-www/server/index.js
sasa         890  0.5  0.5 11797800 85396 ?      Ssl  Oct08 333:49 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         903  0.7  0.4 1329652 81460 ?       Ssl  Oct08 430:09 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         929  0.4  0.4 1300184 69272 ?       Ssl  Oct08 225:51 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         943  0.4  0.4 1300808 66840 ?       Ssl  Oct08 232:58 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         980  0.6  0.5 11805104 92360 ?      Ssl  Oct08 364:01 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa         981  0.7  0.6 1148036 104188 ?      Ssl  Oct08 394:22 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1039  0.9  1.4 11941380 241880 ?     Ssl  Oct08 554:26 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa     2044488  0.3  0.4 1298112 66432 ?       Ssl  Nov01  76:56 node /home/sasa/dex8/dex8-panel/server/index.js
sasa     2574087  0.3  0.4 11792920 76608 ?      Ssl  Nov08  41:30 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     2702010  0.4  0.6 22296952 100804 ?     Ssl  Nov10  34:39 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702011  0.3  0.4 1100276 65912 ?       Ssl  Nov10  30:49 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702018  0.3  0.3 1099884 65292 ?       Ssl  Nov10  30:52 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702019  0.3  0.4 1100516 66688 ?       Ssl  Nov10  30:50 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702046  0.9  0.7 22318668 126576 ?     Ssl  Nov10  83:09 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702047  0.3  0.3 1099492 65152 ?       Ssl  Nov10  31:07 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702088  0.3  0.4 1100008 65916 ?       Ssl  Nov10  30:52 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702089  0.3  0.4 1099752 65720 ?       Ssl  Nov10  30:48 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702137  0.3  0.4 1099864 66032 ?       Ssl  Nov10  30:39 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702139  0.4  0.6 22297452 101800 ?     Ssl  Nov10  35:08 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3097623  1.2  0.8 11716736 131540 ?     Ssl  Nov13  43:11 node /home/sasa/dex8/dex8-api/starter.js
www-data 3355179  0.0  0.0   2608   532 ?        S    06:26   0:00 sh -c ps -aux | grep node
www-data 3355181  0.0  0.0   3304   656 ?        S    06:26   0:00 grep node