Getting only images from JSON response using AngularJS

Question

I have a REST call which gives the all attachments related to a Id which I pass to that call.

The JSON response should be like this

[
{
"id": 1,
"filename": "test.txt",
"size": 594,
"description": "comment",
"createdAt": "2014-04-07 12:53:24",
"binaryId": 1
},
{
"id": 2,
"filename": "dummy.png",
"size": 496,
"description": "comment",
"createdAt": "2014-04-07 12:53:34",
"binaryId": 2
},
{
"id": 3,
"filename": "else.pdf",
"size": 496,
"description": "comment",
"createdAt": "2014-04-07 12:53:34",
"binaryId": 3
},
{
"id": 4,
"filename": "some.jpg",
"size": 496,
"description": "comment",
"createdAt": "2014-04-07 12:53:34",
"binaryId": 4
}
]

Like this I will get all the files with all extensions.

So what I need here is to get only the images (.jpg, .png) from that json response ignoring other files like pdfs, text files etc.

How can I do this usimg AngularJS? Any ideas?

Thank you

dfsq · Accepted Answer · 2014-08-13 11:15:57Z

1

You can use native Array.prototype.filter method:

var images = response.filter(function(el) {
    return /\.(png|jpe?g)$/.test(el.filename);
});

answered Aug 13, 2014 at 11:15

dfsq

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Comments

parthicool05 · Accepted Answer · 2014-08-13 11:23:40Z

$scope.sampleImageArray = [];
    $scope.imageArray = [
        {
            "id": 1,
            "filename": "test.txt",
            "size": 594,
            "description": "comment",
            "createdAt": "2014-04-07 12:53:24",
            "binaryId": 1
        },
 {
"id": 2,
"filename": "dummy.png",
"size": 496,
"description": "comment",
"createdAt": "2014-04-07 12:53:34",
"binaryId": 2
},
 {
"id": 3,
"filename": "else.pdf",
"size": 496,
"description": "comment",
"createdAt": "2014-04-07 12:53:34",
"binaryId": 3
},
{
"id": 4,
"filename": "some.jpg",
"size": 496,
"description": "comment",
"createdAt": "2014-04-07 12:53:34",
"binaryId": 4
 }
    ];

   angular.forEach($scope.imageArray, function (data) {
            var extension = data.filename.substr((data.filename.lastIndexOf('.') + 1));
            if(extension=="png" || extension=="jpg" || extension=="jpeg")
                $scope.sampleImageArray.push(data);
        });

Raphael Müller · Accepted Answer · 2014-08-13 11:20:08Z

0

untested:

var files = [];
angular.forEach($data, $value)
{
    var filename = $value['filename'];
    var length = filename.length;
    var extension = filename.substr(length-3, 3);
    if(extension == "jpg") files.push($value);
}

answered Aug 13, 2014 at 11:20

Raphael Müller

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