Currying Example 2

understandingcurrying2.js

//The curry function that we will use.
var _curry = function() {
  var args = Array.prototype.slice.call(arguments);
  var fn = args.shift();
  return function() {
    return fn.apply(this, args.concat(
      Array.prototype.slice.call(arguments)));
  };
};

var arrayStore = []; //array to store the responses

// callback fn that is to be called after 
//each JSONP call is successful
var callback = function(index,response){
  arrayStore[index] = response;
};

var position = 0;
while( position < 5 ){
  //pre-filling callback function(with current position
  //value) to be called later when the JSONP call returns
  JSONP(url,_curry(callback,position));  
  position++;                           
}