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 1304924 84232 ?       Ssl  Oct24 186:14 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa        1200  0.9  0.8 11721400 137688 ?     Ssl  Oct24 320:35 node /home/sasa/dex8/dex8-api/starter.js
sasa        1207  0.4  0.4 1305072 73328 ?       Ssl  Oct24 147:12 node /home/sasa/regoch/regoch-www/server
sasa        1208  0.4  0.4 1304912 72420 ?       Ssl  Oct24 133:26 node /home/sasa/dex8/dex8-panel/server/index.js
sasa        1224  1.0  0.6 11846776 107164 ?     Ssl  Oct24 333:28 node /home/sasa/dex8/dex8-www/server/index.js
sasa        1236  0.6  0.5 11813132 97928 ?      Ssl  Oct24 201:55 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa        1255  0.7  0.4 1329104 81608 ?       Ssl  Oct24 260:52 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa        1257  0.4  0.4 1300548 68692 ?       Ssl  Oct24 135:23 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa        1289  0.4  0.4 1297184 66076 ?       Ssl  Oct24 133:42 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa        1363  3.1  2.7 12144244 451836 ?     Ssl  Oct24 1056:37 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1449  0.4  0.3 1166312 64736 ?       Ssl  Oct24 140:13 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1528  1.7  2.4 22583240 406412 ?     Ssl  Oct24 580:31 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1529  0.4  0.3 1099620 64012 ?       Ssl  Oct24 140:07 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1606  0.4  0.3 1098596 62648 ?       Ssl  Oct24 140:14 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1607  0.4  0.3 1099876 64188 ?       Ssl  Oct24 139:46 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1705  0.4  0.3 1099624 64400 ?       Ssl  Oct24 139:24 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1706  0.4  0.3 1099364 63236 ?       Ssl  Oct24 139:42 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1805  0.4  0.3 1100384 65120 ?       Ssl  Oct24 139:44 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1807  0.4  0.3 1100128 64028 ?       Ssl  Oct24 136:50 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1885  0.4  0.3 1099112 63292 ?       Ssl  Oct24 137:28 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1886  1.4  0.8 11840736 143260 ?     Ssl  Oct24 483:00 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
www-data  575459  0.0  0.0   2608   588 ?        S    14:18   0:00 sh -c ps -aux | grep node
www-data  575461  0.0  0.0   3304   724 ?        S    14:18   0:00 grep node
sasa     2628167  0.9  0.7 1161536 116428 ?      Ssl  Nov04 160:29 node /home/sasa/voovuu/voovuu-api/starter.js
sasa     3168557  0.7  0.5 11819940 93620 ?      Ssl  Nov06 101:06 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa     3169051  0.4  0.5 11798408 83196 ?      Ssl  Nov06  68:45 node /home/sasa/@mikosoft/dodo-examples/server/index.js