Sort multidimensional array by multiple criteria

Question

var data = [{
    "priority": "1",
    "date": "01.03.2013",
    "title": "Yeah hi"
}, {
    "priority": "2",
    "date": "",
    "title": "Another title"
}, {
    "priority": "2",
    "date": "22.12.2013",
    "title": "Foo"
}, {
    "priority": "1",
    "date": "10.04.2013",
    "title": "Hey there"
}, {
    "priority": "2",
    "date": "15.08.2013",
    "title": "Hello world"
},
...
]

I've an multidimensional array and i want to sort it in a complex way.

1. First sort by "priority" - highest priority first
2. Then sort all items with the same priority by "date" - the next date near today first (there are only dates in future). And if an item don't have a date put it at the end.
3. Sort all items with the same date (and all with no date) by "title" - alphabetically

The first step is no problem with data.sort() but then i've no plan for doing that. How to do that?

Answer 1

One possible solution

data.sort(function(a,b) {
  if ( parseInt(a.priority) > parseInt(b.priority) )
     return 1;
  else if ( parseInt(a.priority) < parseInt(b.priority) )
     return -1;
  else if (a.date > b.date )
     return 1;
  else if ( a.date < b.date )
     return -1;
  else if (a.title > b.title )
     return 1;
  else if ( a.title < b.title )
     return -1;
  else
     return 0;
});

You should change your date field to be some kind of Epox or smth ( you can fix that by yourself ).

Demo : http://jsbin.com/adosuh/1/edit