CODEWITHSUNDEEP
javascriptsorting
Harry
Harry

Reputation: 13329

Sorting objects by fixed values

Say I have a this:

["Done", "Pending", "Busy"]

How would I sort that so the order is busy, pending, done?

I will have a list of objects, each with a status value of either done, pending and busy. So there might be 100's.

Im not sure how this works, because its not alphabetical or logical, its based on user preference.

I want them to always be i that order.

Im using javascript to sort the array.

Checksum: "e791e37b19187712fc95078e8fd2b367"
FileLastWriteTimeUtc: "2013/06/07 01:22:40 PM"
FileName: "1.jpg"
PartsSuccess: 0
PartsTotal: 0
Path: "\Image Content Tests"
Size: 4174754
Status: "Done"

Thanks

Upvotes: 1

Views: 443

Answers (3)

pete
pete

Reputation: 25091

Assuming your list of objects is an array, use a custom sort function:

sortMe.sort(function (a, b) {
    var statusA = ['Busy', 'Pending', 'Done'].indexOf(a.Status),
        statusB = ['Busy', 'Pending', 'Done'].indexOf(b.Status);
    return statusA - statusB;
});

where sortMe is something like the following:

var sortMe = [{
    "Checksum": "e791e37b19187712fc95078e8fd2b367",
    "FileLastWriteTimeUtc": "2013/06/07 01:22:40 PM",
    "FileName": "1.jpg",
    "PartsSuccess": 0,
    "PartsTotal": 0,
    "Path": "\Image Content Tests",
    "Size": 4174754,
    "Status": "Done"
},{
    "Checksum": "e791e37b19187712fc95078e8fd2b367",
    "FileLastWriteTimeUtc": "2013/06/07 01:22:40 PM",
    "FileName": "2.jpg",
    "PartsSuccess": 0,
    "PartsTotal": 0,
    "Path": "\Image Content Tests",
    "Size": 4174754,
    "Status": "Busy"
},{
    "Checksum": "e791e37b19187712fc95078e8fd2b367",
    "FileLastWriteTimeUtc": "2013/06/07 01:22:40 PM",
    "FileName": "3.jpg",
    "PartsSuccess": 0,
    "PartsTotal": 0,
    "Path": "\Image Content Tests",
    "Size": 4174754,
    "Status": "Pending"
}];

Upvotes: 0

Fizer Khan
Fizer Khan

Reputation: 92875

I assume that you have objects like

[
{
    'name' : 'Sending mail to manager',
    'status': 'pending'
},

{
    'name' : 'Talking to girl friend',
    'status': 'busy'
},

{
    'name' : 'Breakfast',
    'status': 'done'
},
]

I suggest you to use underscorejs

_.sortBy(a, function(obj) {
    if (obj.status === 'busy') {
        return 1; 
    } else if (obj.status === 'pending') { 
        return 2; 
    }
    return 3; 
})

Upvotes: -1

WouterH
WouterH

Reputation: 1356

You assign each of your values a sort order. This sort order is a number, and entirely up to you on what to make them. You then sort by the sort order of the value you actually want to sort. An example:

var data = [
    {
        id: 1,
        state: "Pending"
    },
    {
        id: 2,
        state: "Done"
    },
    {
        id: 3,
        state: "Busy"
    }
];

var sortOrders = {
    "Done": 1,
    "Busy": 2,
    "Pending": 3
};

data.sort(function(a, b) {
    return sortOrders[a.state] - sortOrders[b.state];
});

demo: http://ideone.com/qsz52d

Upvotes: 5

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