Examples of one return versus multiple returns

lookup.js

// Lookup Table
var waldoChecks = {
	kitchen: isInKitchen,
	bedroom: isInBedroom,
	garage: isInGarage
};

//add the dom elements he could be hiding in
for(var i = 0; i < 100; i++) {
(function(i) {
	var elem = "#hiding" + i.toString();
	waldoChecks[elem] = function() {
			return $(elem).hasWaldo();
	};
})(i)
}

function findWaldo() {
	for (var loc in waldoChecks) {
		if (waldoChecks[loc]()) {
			return loc;
		}
	}
}

Multiple.js

// Multiple returns -- totally unreadable.
function findWaldo() {
	var ret;
	
	if  (isInKitchen()) return "kitchen";
	if  (isInBedroom()) return "bedroom";
	if  (isInGarage()) return "garage";
	
	//check the dom elements he could be hiding in
	for(var i = 0; i < 100; i++) {
		var elem = "#hiding" + i.toString();
		if($(elem).hasWaldo()) {
			return elem;
		}
	}
	
	return "couldn't find him";
}

Single.js

// Only one return, so It's clear.
function findWaldo() {
	var ret;
	
	ret = isInKitchen() ? "kitchen" : isInBedroom() ? "bedroom" : isInGarage() ? "garage" : undefined;
	
	if(!ret) {
		//check the dom elements he could be hiding in
		for(var i = 0; i < 100; i++) {
			if (!ret) {
				var elem = "#hiding" + i.toString();
				if($(elem).hasWaldo()) {
					ret = elem;
				}
			}
		}
	}
	
	return ret ? ret : "couldn't find him";
}