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localStorage - get values

Hi all,

I have 'localStorage' data from an existing website cart that is displaying in the following format:

{"SCI-1":{"quantity":1,"id":"SCI-1","price":50,"name":"ABC","cbm":"0.000001","weight":"0.1"},"SCI-2":{"quantity":1,"id":"SCI-2","price":100,"name":"DEF","cbm":"0.000001","weight":"0.1"},"SCI-3":{"quantity":1,"id":"SCI-3","price":50,"name":"GHI","cbm":"0.000001","weight":"0.1"}}

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I used this code to give me the above:

var result = localStorage["cartData"];
console.log(result);

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How do i go about extracting the item totals of:
- quantity
- cbm (cubic meters)
- weight

I know it will need to loop through the localStorage but just not sure how too.
Anyone got some experience with this and a super easy solution?

Thanks a heap!!

Snarf0001

You should call JSON.parse first once you have the value from storage, to turn it into a valid object.
Then looping throw the first level of associative properties, and getting direct .quantity values from those objects.

Something like this:

var totalQty = 0, totalWeight = 0.0;
var result = JSON.parse(localStorage["cartData"];
for(var sci in result) {
	totalQty += sci.quantity;
	totalWeight += sci.weight;
}

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mankowitz

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dev09

ASKER

Perfect, thanks!!