Iterating through a set of key/value pair to set values

Question

What initially appeared to be a no-brainer got me scratching my head and wondering why I can't seem to iterate through a simple list of value/key pairs to reset all values to zero. My code (javascript) looks as follows:

var theme = {
    facilityNRCount: 5,
    facilityMOCount: 2,
    facilitySMCount: 8,
    ....
    physicalSecCount: 9,
    energyWaterCount: 1,
    otherSustCount: 10
};

$.each(theme, function(k, v) {
    v = 0;
});

And apparently I'm missing something, which isn't so obvious to me. Here's the fiddle .

Answer 1

The $.each function doesn't use references. The v is just the value, not a reference to it.

Try this:

for(var k in theme){
    if(theme.hasOwnProperty(k)){
        theme[k] = 0;
    }
}