what is Chain of Responsibility Design Pattern?

Chain of response yet another popular pattern that can be used in the situation where :-

1. Initial configuration takes more time.
2. Same type of request comes for many time to process.

Example,
              — Printer is perfect real time example for these above scenario.
              — Printer needs significant amount of time for warming up for the first request.
              — Example code below,

/*Chain of Responsibility
*@Sandeep Kumar Patel
* 1. A reusable object is created 'printer'.
* 2. This 'printer' can handle the subsequent requests.
*/
var Printer = function(textToPrint){/*All configuration stuff related to printer will be done here*/}
Printer.prototype = {
    print :function(textToPrint){
            alert(textToPrint);
        return this;
    }
    
}
var work = function(){
       var printer = new Printer();
           /*Here is a chain of request/responsibility for printing*/
           printer.print('sandeep0').print('sandeep1')
           .print('sandeep2').print('sandeep3').print('sandeep4');
}

work();

Js fiddle Link