Read JSON data values by keys in $.each loop

Question

I've returned JSON data from controller (via ajax), and wanna access to this data. This is a list of objects (array): key - value, so I wanna use .each() to access all data. Array like that:

[{"filePath":"Desktop.zip","fileStatus":"Uploaded"},{"filePath":"Desktop\\dates.xml","fileStatus":"Uploaded"}]

and code is:

$.ajax({
                    url: '@Url.Action("GetFilesNames", "Home")',
                    type: 'POST',                    
                    success: function (data) {                      

                        $.each(data, function (value) {
                            console.log(value['filePath'], value['fileStatus']);

                            });
                    }
                });

But data.each value is undefined.

So I've tried to console.log all data, json.stringify it, parse it (but somehow with error), and parse stringyfied version, but in makes no sense. Even If I use this stringified version (paths) or parsed stringified version (listOfFiles) with .each - same result: undefined.

At the top of your success function, data is an array. That is what you want. Don't try converting it to JSON (which isn't useful) or from JSON (because it isn't JSON). — Quentin
– Quentin, Commented Sep 3, 2018 at 14:01
@Quentin ok, I get it. But if I have an array, so what should I do to get data value by it's key? Why my code $.each(data, function (value) { console.log(value['filePath'], value['fileStatus']); }); isn't working? — pad0n
– pad0n, Commented Sep 3, 2018 at 14:05

Quentin · Accepted Answer · 2018-09-03 14:03:56Z

2

See the documentation for jQuery.each:

callback
Type: Function( Integer indexInArray, Object value )

Now see your code:

$.each(data, function (value) {

You are trying to read the properties from the first argument, which is an Integer (the index in the array() and not the value. You need to be reading properties from the second argument.

 $.each(data, function (index, value) {

answered Sep 3, 2018 at 14:03

Quentin

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1 Comment

pad0n Over a year ago

HOLY COW... now I get it.. It's working! Thanks ! Feel so dumb now

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