Your example above slices the argument, returns an array, and then returns a string using join:

———
var args = Array.prototype.slice.call(arguments);
alert(” your parameters were ” + args.join(“, “));
———

why not just call it directly?

———
alert( Array.prototype.join.call( arguments ) );
———

Isnt this more efficient?

There is a ‘quick’ way to code it if you are on a modern (ECMASCript 5) environment:

var filtered = detailsArray.filter( function(value) {
return value.moduleKey === ‘attendanceindex’;
});

go to this link:-http://nfriedly.com/techblog/2009/06/advanced-javascript-objects-arrays-and-array-like-objects/…

I would take a look at your design and see if objectArray could instead be an Object, and not an Array. If so, I’d change it’s name to objectLookup, and then finding a module with “attendanceindex” is O(1).

   var objectLookup = {
       attendanceindex :
         {
	        moduleKey: "attendancecalendar",
	        iframe: true,
	        innerWidth: 500,
	        innerHeight: 350,
	        opacity: 0.35,
	        scrolling: false,
	        identifierType: "href"
	 },
         // ...rest of contents of objectArray
    };

    //then later..
    var winner = objectLookup.attendanceindex;

There’s no “quick” way to do it, you’d just need to loop through the entire list and check each one until you find it:

var winner;
for(var i=0; i< detailsArray.length; i++) {
  if(detailsArray[i].moduleKey === "attendanceindex") {
    winner == detailsArray[i];
    break;
  }
}

Note, I said “quick” in quotes because in reality even with 1000 items in the array it took 0.005 seconds on my laptop (I tested it).