CODEWITHSUNDEEP
javascriptjqueryjson
Tomas Reimers
Tomas Reimers

Reputation: 3292

$.parseJSON breaking with double quotes

Can someone pleas explain to me why json which contains a string with double quotes will break $.parseJSON?

This works:

[{"type":"message","content":{"user":"tomasa", "time":"1321722536", "text":"asdasdasd"}}]

This also works:

[{"type":"message","content":{"user":"tomasa", "time":"1321723267", "text":"""}}]

However this will cause $.jsonParse to not return anything (I am assuming becuase it is a malformed json string:

[{"user":"tomasa", "time":"1321723278", "text":""""}}]

Upvotes: 0

Views: 4437

Answers (5)

Martijn
Martijn

Reputation: 606

It crashes because of the double }.

>>> $.parseJSON('[{"user":"tomasa", "time":"1321723278", "text":""""}}]')
SyntaxError: JSON.parse: expected ',' or ']' after array element
(function(a,b){function cy(a){return f...h]&&f.event.trigger(c,d,b.handle.elem

But this works:

>>> $.parseJSON('[{"user":"tomasa", "time":"1321723278", "text":""""}]')
[Object { user="tomasa", time="1321723278", text=""""}]

Upvotes: 3

dossy
dossy

Reputation: 1678

Because the JSON specification specifically states that string elements are defined as:

string
  ""
  " chars "

In other words, string values must be surrounded by double quotes in order to be valid JSON.

Edited to add:

My answer above is correct for the original question as it was posted a few seconds ago, which was basically "why does jQuery.parseJSON fail when double quotes aren't used", but then the OP modified the question to include an example that demonstrates his/her actually problem, which has nothing to do with the quotes at all.

Upvotes: 0

pimvdb
pimvdb

Reputation: 154968

It's not the " or " but the extraenous } you have:

[{"user":"tomasa", "time":"1321723278", "text":""""}}]
                                                              ^

Upvotes: 5

RightSaidFred
RightSaidFred

Reputation: 11327

You have an extra } at the end.

}}]

You should run troublesome JSON markup through http://jsonlint.com/

Parse error on line 6:
..."""    }}]
---------------------^
Expecting ',', ']'

Upvotes: 9

AgnosticDev
AgnosticDev

Reputation: 1853

$.parseJSON is looking for the name of the object in double quotes and the value of that object in single quotes. Is this what you are asking?

Upvotes: 0

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