[Proto-Scripty] Re: Problem with evalJSON in Prototype 1.7
Thanks a lot for your answer T.J., definetly your know how to give
complete and useful answers.
Kind regards,
Pablo Pazos.
http://yuppframework.blogspot.com
On 25 feb, 10:47, "T.J. Crowder" wrote:
> Hi Pablo,
>
> Your JSON is incorrect. Key names *must* be in double (not single)
> quotes, and strings must be in double (not single) quotes:http://json.org
>
> Many "JSON" parsers are lax and let you get away with things, because
> they're really just thin wrappers around JavaScript parsers (via
> `eval`), and your code is valid JavaScript object literal notation.
> But it's considered bad practice to use `eval` to process JSON and the
> trend is to move away from it to genuine JSON parsers, which are more
> strict. I don't know it for a fact, but it sounds like 1.7 moved to a
> strict parser.
>
> Here's a valid version of your JSON:
> * * * *
> {
> "comentarios":
> [
> {
> "texto" : "sdfadfadfadfasdf",
> "fecha" : "2011-02-11 23:24:13",
> "class" : "Comentario",
> "deleted" : "",
> "entrada_id" : "1",
> "usuario_id" : "",
> "id" : "2"
> },
> {
> "texto" : "asdfasdfasdfasdfasdfasdf",
> "fecha" : "2011-02-11 23:24:17",
> "class" : "Comentario",
> "deleted" : "",
> "entrada_id" : "1",
> "usuario_id" : "",
> "id" : "3"
> }
> ]}
>
> * * * *
>
> Note that you don't have to put numbers in quotes, though. I've left
> them in qutoes because for all I know, you want them to be strings,
> but I thought I'd mention it.
>
> This site is useful for validating your JSON:http://www.jsonlint.com/
>
> HTH,
> --
> T.J. Crowder
> Independent Software Engineer
> tj / crowder software / com
> www / crowder software / com
>
> On Feb 24, 3:21 pm, pablopazos wrote:
>
> > Hi, I've updated my v1.6.1 Prototype to the new v1.7.
>
> > In 1.6.1 I have this (**) JSON string parsed correctly, but in v1.7
> > I'm getting a Parse Error when I call evalJSON() on the JSON string.
> > The JSON format seems to be correct, so I think something is broken in
> > v1.7.
>
> > (**)
>
> > {
> > 'comentarios':
> > [
> > {
> > 'texto' : 'sdfadfadfadfasdf',
> > 'fecha' : '2011-02-11 23:24:13',
> > 'class' : 'Comentario',
> > 'deleted' : '',
> > 'entrada_id' : '1',
> > 'usuario_id' : '',
> > 'id' : '2'
> > },
> > {
> > 'texto' : 'asdfasdfasdfasdfasdfasdf',
> > 'fecha' : '2011-02-11 23:24:17',
> > 'class' : 'Comentario',
> > 'deleted' : '',
> > 'entrada_id' : '1',
> > 'usuario_id' : '',
> > 'id' : '3'
> > }
> > ]
> > }
>
> > Cheers,
> > Pablo.http://yuppframework.blogspot.com/
>
>
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[Proto-Scripty] Re: Problem with evalJSON in Prototype 1.7
Hi Pablo,
Your JSON is incorrect. Key names *must* be in double (not single)
quotes, and strings must be in double (not single) quotes: http://json.org
Many "JSON" parsers are lax and let you get away with things, because
they're really just thin wrappers around JavaScript parsers (via
`eval`), and your code is valid JavaScript object literal notation.
But it's considered bad practice to use `eval` to process JSON and the
trend is to move away from it to genuine JSON parsers, which are more
strict. I don't know it for a fact, but it sounds like 1.7 moved to a
strict parser.
Here's a valid version of your JSON:
* * * *
{
"comentarios":
[
{
"texto" : "sdfadfadfadfasdf",
"fecha" : "2011-02-11 23:24:13",
"class" : "Comentario",
"deleted" : "",
"entrada_id" : "1",
"usuario_id" : "",
"id" : "2"
},
{
"texto" : "asdfasdfasdfasdfasdfasdf",
"fecha" : "2011-02-11 23:24:17",
"class" : "Comentario",
"deleted" : "",
"entrada_id" : "1",
"usuario_id" : "",
"id" : "3"
}
]
}
* * * *
Note that you don't have to put numbers in quotes, though. I've left
them in qutoes because for all I know, you want them to be strings,
but I thought I'd mention it.
This site is useful for validating your JSON: http://www.jsonlint.com/
HTH,
--
T.J. Crowder
Independent Software Engineer
tj / crowder software / com
www / crowder software / com
On Feb 24, 3:21 pm, pablopazos wrote:
> Hi, I've updated my v1.6.1 Prototype to the new v1.7.
>
> In 1.6.1 I have this (**) JSON string parsed correctly, but in v1.7
> I'm getting a Parse Error when I call evalJSON() on the JSON string.
> The JSON format seems to be correct, so I think something is broken in
> v1.7.
>
> (**)
>
> {
> 'comentarios':
> [
> {
> 'texto' : 'sdfadfadfadfasdf',
> 'fecha' : '2011-02-11 23:24:13',
> 'class' : 'Comentario',
> 'deleted' : '',
> 'entrada_id' : '1',
> 'usuario_id' : '',
> 'id' : '2'
> },
> {
> 'texto' : 'asdfasdfasdfasdfasdfasdf',
> 'fecha' : '2011-02-11 23:24:17',
> 'class' : 'Comentario',
> 'deleted' : '',
> 'entrada_id' : '1',
> 'usuario_id' : '',
> 'id' : '3'
> }
> ]
> }
>
> Cheers,
> Pablo.http://yuppframework.blogspot.com/
--
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