CODEWITHSUNDEEP
javascriptjqueryjson
chris
chris

Reputation: 36937

jQuery count JSON by Key and Value (could this function work?)

function countJSONObjByKeyValue(obj, key, value)
{
    var countJSONShows = 0;
    $.each(obj, function(i, item)
    {
        if(obj[i].key == value){ countJSONShows++; }
    });
    alert(countJSONShows);
}
countJSONObjByKeyValue("dashboardJSON.widgets", "show", "false");

is it plausible to think something along the lines there of the function above could work? If so what is wrong with this current function/call to it that I could do to make it work?

I know doing it without the wrapping of a function I can do it just fine but I would like the concept to be reusable.

Upvotes: 0

Views: 486

Answers (2)

frosty
frosty

Reputation: 21762

I don't know what the dashboardJSON.widgets looks like, so I can't tell you 100% of what the problem is.

However, a obvious issue is the way that you are referencing the key. When dealing with JSON, you can reference the key the following two ways:

var o = {"foo":"bar"};
o.foo;
o["foo"];

What you need to do, since you are passing a String value of the key in as a param, you need to use the second way:

obj[i][key]

Upvotes: 1

rickyduck
rickyduck

Reputation: 4084

Should work, however you could also do:

function countJSONObjByKeyValue(obj, key, value)
{
   var countJSONShows = 0;


   for(x in obj){
        if(obj[i].key == value){ countJSONShows++; }
   }
   window.alert(countJSONShows);
}
countJSONObjByKeyValue(dashboardJSON.widgets, "show", "false");

Also note, obj mustnt be passed as a string

Upvotes: 1

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