..:: Source code - 03fun_parameter_callback3.js ::..

/**
 * callback as function parameter
 */

//define function with callback
function fja(p1, cb) {
	
	res = p1 +10;
	cb(p1);
}


//define parameters
var x=2;

//callback as an object
var obj = {
	cb1: function(a) {
		console.log('cb1: '+a);
	},
	cb2: function(a) {
		console.log('cb2: '+a);
	}

}




//call function
var res = fja(x, obj.cb1); //2

..:: NodeJS Console - 03fun_parameter_callback3.js ::..

cb1: 2

$ps -aux | grep node (list all node processes)
sasa         831  0.5  0.4 1302816 78704 ?       Ssl  Jun15  92:59 node /home/sasa/.pm2/modules/pm2-logrotate/node_modules/pm2-logr
sasa         843  0.5  0.6 11699376 101376 ?     Ssl  Jun15  86:59 node /home/sasa/dex8/dex8-api/starter.js
sasa         858  0.4  0.4 1302344 70764 ?       Ssl  Jun15  69:28 node /home/sasa/regoch/regoch-www/server
sasa         867  0.3  0.4 1298572 66208 ?       Ssl  Jun15  65:47 node /home/sasa/dex8/dex8-panel/server/index.js
sasa         886  0.8  0.6 11824068 110736 ?     Ssl  Jun15 141:10 node /home/sasa/dex8/dex8-www/server/index.js
sasa         888  0.5  0.4 11791988 77508 ?      Ssl  Jun15  94:44 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         904  0.7  0.4 1329652 81156 ?       Ssl  Jun15 126:24 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         910  0.3  0.4 1300240 68664 ?       Ssl  Jun15  66:27 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         969  0.3  0.3 1297484 65164 ?       Ssl  Jun15  65:44 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         970  0.6  0.5 11820664 94648 ?      Ssl  Jun15 116:02 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa        1010  0.6  0.6 1145428 100764 ?      Ssl  Jun15 110:12 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1016  0.8  1.1 11878096 185776 ?     Ssl  Jun15 141:43 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa        1086  0.4  0.4 11794144 77576 ?      Ssl  Jun15  70:59 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa        1089  0.3  0.3 1099356 64308 ?       Ssl  Jun15  67:19 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1159  0.3  0.4 22275900 75584 ?      Ssl  Jun15  67:52 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1160  0.3  0.3 1099356 63444 ?       Ssl  Jun15  67:22 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1241  0.3  0.3 1100952 62836 ?       Ssl  Jun15  67:40 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1242  0.4  0.5 22283220 83132 ?      Ssl  Jun15  71:28 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1323  0.3  0.3 1099100 63504 ?       Ssl  Jun15  67:34 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1324  0.3  0.3 1099616 64092 ?       Ssl  Jun15  67:23 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1398  0.3  0.3 1099104 63560 ?       Ssl  Jun15  67:32 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1400  0.3  0.3 1099356 63208 ?       Ssl  Jun15  67:41 node /home/sasa/dex8/dex8-worker/starter.js
sasa        1465  0.3  0.3 1099104 63580 ?       Ssl  Jun15  67:32 node /home/sasa/dex8/dex8-worker/starter.js
sasa      178968  0.8  0.5 11802692 90724 ?      Ssl  Jun17 113:41 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa      337381  1.3  0.5 1316976 88124 ?       Ssl  Jun19 144:45 node /home/sasa/crypto/dex-arbitrage-bot/scripts/observer/index2
www-data  869617  0.0  0.0   2608   540 ?        S    22:52   0:00 sh -c ps -aux | grep node
www-data  869619  0.0  0.0   3304   664 ?        S    22:52   0:00 grep node