Looping over dynamic JSON in a specific way

Question

I currently have this JSON file

{   
"name": "Connor Atherton",
"course": "Combined Sciences",

"modules" : {

    "MATH210": 
    {
        "weekly": 65,
        "weekly2": 76,
        "exam": 80
    },

    "MATH215": {
        "weekly": 65,
        "exam": 80
    },

    "MATH220": {
        "weekly": 65,
        "exam": 80
    },

    "MATH225": {
        "weekly": 65,
        "weekly2": 98,
        "exam": 80
    },

    "SCC210": {
        "weekly": 65,
        "exam": 80
    },

    "SCC204": {
        "weekly": 65,
        "exam": 80
    }

}

}

As you can see in each module there could be a different number of properties which will be retrieved dynamically.

I am currently looping over each module like this

$.each(json.modules, function(i, item) {
    console.log(i + " " + item.exam);
});

However this won't work for all the modules since they can all have a different number of properties.

I have been trying to loop over each module's properties with for loops but I can't quite get it to work. I figured I should use

item.length

somewhere in the loop but I'm not sure.

Do you have any idea how I could loop over each module if each one has a different number of properties?

Thanks

maximkou · Accepted Answer · 2013-06-02 14:10:50Z

3

If I understood you correctly:

$.each(json.modules, function(i, item) {
    for (var key in item){
        // output, to example: "exam = 80"
        console.log(key + ' = ' + item[key]);
    }
});

answered Jun 2, 2013 at 14:10

maximkou

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1 Comment

Connor Atherton Over a year ago

Yeah that did it thanks, I had var item in i instead of key in item!

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