_.sortedIndex_example.js

_.sortedIndex_example.js

//assuming 'listItems' is non-alphabetical unordered list (response from server, etc.)

var finalArr = [];
var idx;

_.each(listItems, function(el, i) {
	
	// _.sortedIndex magic here...  binary compare;
	
	// finalArr is passed to _.sortedIndex each time
	// el - is the current item being acted on in the loop
	// 'name' is the key in the object whose value will be evaluated when determining index
	
	idx = _.sortedIndex(finalArr, el, 'name');
	
	//now add the el to the finalArr at the index returned.
	finalArr.splice(idx, 0, el);
	
});

return finalArr; //this will be a sorted array

//additional documentation: http://underscorejs.org/#sortedIndex