CODEWITHSUNDEEP
javascriptjsondictionary
Joseph
Joseph

Reputation: 924

JSON mapping in Javascript

So I have this JSON

https://bitcoinpayflow.com/orders{"order":{"bitcoin_address":"1NwKSH1DJHhobCeuwxNqdMjK5oVEZBFWbk"}}

No I want to reference the bitcoin_address

So first I strip away the string at the beginning

        var stripped = data.substring(33);
        alert(stripped);
                var btc = stripped.orders.bitcoin_address;
        alert(btc);

I get the first alert, but not the second. Any idea why?

Upvotes: 1

Views: 386

Answers (3)

Nick
Nick

Reputation: 6025

I would use JSON.parse as follows.

$.post('php/whatever.php',{data:dS},function(res){
    var o=JSON.parse(res);
    var bitcoins=o.order.bitcoinaddress;
},"text");

Upvotes: 1

Denis Ermolin
Denis Ermolin

Reputation: 5556

The easiest way to decode json - string - use eval

var bitcoins = eval('(' + json_string + ')');

And access bitcoins['order']['bitcoin_address'] But it a bit unsafe. Upper method is more safer.

Upvotes: 1

James Allardice
James Allardice

Reputation: 166041

Because stripped is still just a string. You need to parse it into an object. You can use the native JSON.parse method to do this:

var stripped = JSON.parse(data.substring(33));

Also, you are referencing the orders property, which doesn't exist. It's order.

Note that JSON.parse is not supported by older browsers. You can use this polyfill to make sure it's always available.

Upvotes: 2

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