How to calculate the length of a array in this case

Question

I am geting the following response from a Ajax call

[
    {
        "orderjson": "[{\"contact_phone_no\":\"9866545438\"},{\"contact_phone_no\":\"9866545438\"}]"
    }
]

I am trying to take the length of orderjson this way .

var data = 

    [
    {
        "orderjson": "[{\"contact_phone_no\":\"9866545438\"},{\"contact_phone_no\":\"9866545438\"}]"
    }
]

  console.log(JSON.stringify(data[0].orderjson.length));

But when i do so i am geting its length as 69 wheer as it is 2 .

Please tell me how to resolve this

It looks like you're double-encoding the returned JSON, which means the child property is being encoded as one large string. You should change the response format. — Rory McCrossan
– Rory McCrossan, Commented Mar 13, 2015 at 11:51

A. Rama · Accepted Answer · 2015-03-13 11:52:30Z

4

Using JSON.stringify you're transforming the JSON into a string then the length call gives you the length of the resulting string.

Just do:

console.log(JSON.parse(data[0].orderjson).length)

and it should work.

You need JSON.parse because the orderjson content is a string.

answered Mar 13, 2015 at 11:52

A. Rama

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