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432

answers:

1

Hi,

I've this:

JSON.parse('{"130.00000001":{"p_cod":"130.00000001","value":"130.00000001 HDD Upgrade to 2x 250GB HDD 2.5\" SATA2 7200rpm"}}');

http://www.jsonlint.com/ says it's perfectly valid json.

But on execution I have a JSON.parse error.

But, if I change my code to:

    JSON.parse('{"130.00000001":{"p_cod":"130.00000001","value":"130.00000001 HDD Upgrade to 2x 250GB HDD 2.5\\" SATA2 7200rpm"}}');

(note the double backslash)

It works, but now jsonlint gives me invalid json :/

Can someone help to understand this behavior?

+3  A: 

It's a difference between the wire format, and what you have to write in your code to get the wire format. When you declare this in code you need the double-\ in your literal so the string gets a single backslash (otherwise it will interpret \" as an escape sequence for just declaring a " and put that in your string). If you print out the value of the literal you will see a single backslash.

Dean Povey
Tks Dean, I think I got to first escape the javascript and then the JSON.So assuming this is coming from PHP how can I "double" escaping it: I've tried this: str_replace('\"','\\"', $json) but it's not working.
mjsilva
Got it: str_replace('\\"','\\\\"', $json)Today I learn that there is also a escaping hell :)
mjsilva