update jquery end method to include parameters

gistfile1.js

// with this you can write .end(3) instead of .end().end().end() 

(function(){
  
    // Define overriding method.
    jQuery.fn.end = function(no_of_times){
  	var prevObject = this.prevObject;
		if (!(arguments.length) || (typeof no_of_times !== "number")) {
			return this.prevObject || this.constructor(null);
		} else {
			  for(i = 1; i<no_of_times; i++) {
				  prevObject = prevObject.prevObject;
				  if(!prevObject) {
					  prevObject = this.constructor(null);
					  break
				  }
			  }		
			  return prevObject;
		  }
    } 
})()