..:: Source code - 057wrapper_object.js ::..

/**
This code demonstrates that strings, numbers, and boolean
values behave like objects when you try to read the value of a property (or method)
from them. But if you attempt to set the value of a property, that attempt is silently
ignored: the change is made on a temporary object and does not persist.
The temporary objects created when you access a property of a string, number, or
boolean are known as wrapper objects, and it may occasionally be necessary to distin-
guish a string value from a String object or a number or boolean value from a Number
or Boolean object. 
 */

var s = "test"; //this is string

s.len = 4; //setting a property doesn't take effect

var t = s.len;
console.log(t); //returns undefined because s.len=4 doent work

..:: NodeJS Console - 057wrapper_object.js ::..

undefined

$ps -aux | grep node (list all node processes)
sasa         849  0.5  0.5 1318144 86056 ?       Ssl  Oct08 283:01 node /home/sasa/regoch/regoch-www/server
sasa         880  0.4  0.5 1319240 87864 ?       Ssl  Oct08 235:37 node /home/sasa/dex8/dex8-www/server/index.js
sasa         890  0.5  0.5 11797800 85096 ?      Ssl  Oct08 334:18 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         903  0.7  0.5 1329652 82260 ?       Ssl  Oct08 430:48 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         929  0.4  0.4 1300184 68672 ?       Ssl  Oct08 226:10 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         943  0.4  0.4 1300808 66172 ?       Ssl  Oct08 233:17 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         980  0.6  0.5 11805104 92016 ?      Ssl  Oct08 364:31 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa         981  0.7  0.6 1148036 104552 ?      Ssl  Oct08 394:54 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1039  0.9  1.4 11953572 245588 ?     Ssl  Oct08 554:58 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa     2044488  0.3  0.4 1298112 66788 ?       Ssl  Nov01  77:16 node /home/sasa/dex8/dex8-panel/server/index.js
sasa     2574087  0.3  0.4 11792920 76764 ?      Ssl  Nov08  41:51 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     2702010  0.4  0.6 22296952 100400 ?     Ssl  Nov10  35:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702011  0.3  0.4 1100276 66976 ?       Ssl  Nov10  31:09 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702018  0.3  0.3 1099884 65132 ?       Ssl  Nov10  31:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702019  0.3  0.4 1100516 67312 ?       Ssl  Nov10  31:11 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702046  0.9  0.7 22311780 123860 ?     Ssl  Nov10  84:16 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702047  0.3  0.3 1099492 65124 ?       Ssl  Nov10  31:28 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702088  0.3  0.4 1100008 65708 ?       Ssl  Nov10  31:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702089  0.3  0.4 1099752 66620 ?       Ssl  Nov10  31:08 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702137  0.3  0.3 1099864 65368 ?       Ssl  Nov10  31:00 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702139  0.4  0.6 22297196 101596 ?     Ssl  Nov10  35:31 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3097623  1.1  0.8 11716736 131436 ?     Ssl  Nov13  44:00 node /home/sasa/dex8/dex8-api/starter.js
www-data 3364515  0.0  0.0   2608   536 ?        S    08:03   0:00 sh -c ps -aux | grep node
www-data 3364517  0.0  0.0   3304   732 ?        S    08:03   0:00 grep node