Re: JSON Syntax error -- WEB400

Example:

let say you have a number of users and you what to process them the typical
mainloop to process the DOM since JSON isn't a object but only a notation of
a DOM object:

myObj = JSON.parse(allUsers)

for (i = 0; i < myObj.length; i++) {

myRow = myObj(i)

Fields can now be processed like

myRow.userName
myRow.userAge

but when you reach workOutDate that ends jo you need to retreive the
object

myWorkOutDate = myRow.workOutDate

and proces the folowing fields like

myWorkOutDate.Month
myWorkOutDate.Day
myWorkOutDate.Year

This is what is called copy by reference since both myRow and MyWorkOutDate
only exists as a storage reference to the original myObj but often you want
to make
either a shallow copy or a deep copy that dosn't refer to the original. The
deep copy
is actually hard to make since it contains the DOM properties from the
original.

The shallow copy is easier to make by using JSON as the intermediate format:

myWorkOutDate = JSON.stringify(myRow.myWorkOutDate)
myWorkOutDate = JSON.parse(myWorkOutDate)

On Mon, Mar 13, 2017 at 12:13 AM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

btw,

as a general rule you shoul NOT use object within objects unless you need
a array
of similar objects.

it just creates the need of a lot code you really don't need by keeping
the elements
in one level and there is no Xpath i JSON.

On Sun, Mar 12, 2017 at 11:52 PM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

{
"userName": "BERT ",
"userAge": 28,
"userWeight": 180,
"userGender": "M",
"userHeight": "72",
"mID": "GB"
"workoutDate": {
"Month": 2,
"Day": 22,
"Year": 2016
},
"distance": 10.1,
"finishTime": {
"Hours": 13,
"Minutes": 38
},
"pctAverageHeartRateInZone": 0.0,
"averageSpeed": 15.1,
"totalWorkoutTime": {
"Hours": 0,
"Minutes": 40
},
"averageWattsPerHour": 75.0,
"totalCalories": 211.0,
"avgHeartRate": 129.3,
"avgRpm": 62,
"avgLevel": 4
}

or if you have x workoutdates

{
"userName": "BERT ",
"userAge": 28,
"userWeight": 180,
"userGender": "M",
"userHeight": "72",
"mID": "GB"
"workoutDates" [
{ "workoutDate": {
"Month": 2,
"Day": 22,
"Year": 2016
},
"distance": 10.1,
"finishTime": {
"Hours": 13,
"Minutes": 38
},
"pctAverageHeartRateInZone": 0.0,
"averageSpeed": 15.1,
"totalWorkoutTime": {
"Hours": 0,
"Minutes": 40
},
"averageWattsPerHour": 75.0,
"totalCalories": 211.0,
"avgHeartRate": 129.3,
"avgRpm": 62,
"avgLevel": 4
},{ "workoutDate" :
.....
}
]

}

On Sun, Mar 12, 2017 at 11:42 PM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

Or you may pot the object into an array [{ ... },{ ....}] // still you
need the comma to separate the
array elements

On Sun, Mar 12, 2017 at 11:41 PM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

Jon,

you can't have a object and a object }{ - that is forbidden, but you
can name the objects

"abc" : { ... }, // you still need the comma to separate the abc and
def element
"def" : { ... }

On Sun, Mar 12, 2017 at 11:37 PM, Jon Paris <jon.paris@xxxxxxxxxxxxxx>
wrote:

Thanks Don - I tried a similar approach and also tried adding the [
for an array to get the repeats - but still can't make it work.

I also tried coding some XML (where I understand repeating elements)
and using an on-line convertor to convert it to json - sadly it doesn't
help because it converts it to a series of arrays which is not how the
original data is presented.

Jon Paris

www.partner400.com
www.SystemiDeveloper.com

On Mar 12, 2017, at 6:00 PM, Don Brown <DBrown@xxxxxxxxxx> wrote:

The first part validated correctly and the second part validated

correctly

so I modified as follows and the complete string validated correctly.

While this now validates if you have not pasted the entire string

that may

be why this change worked.

I don't know JSON but the repeating section I think needs to be

enclosed

in [ ] not { }

{
"userName": "BERT ",
"userAge": 28,
"userWeight": 180,
"userGender": "M",
"userHeight": "72",
"mID": "GB",

"workoutDate": {
"Month": 2,
"Day": 22,
"Year": 2016
},
"distance": 10.1,
"finishTime": {
"Hours": 13,
"Minutes": 38
},
"pctAverageHeartRateInZone": 0.0,
"averageSpeed": 15.1,
"totalWorkoutTime": {
"Hours": 0,
"Minutes": 40
},
"averageWattsPerHour": 75.0,
"totalCalories": 211.0,
"avgHeartRate": 129.3,
"avgRpm": 62,
"avgLevel": 4
}

Don Brown

From: Jon Paris <jon.paris@xxxxxxxxxxxxxx>
To: "Web400@Midrange. Com" <web400@xxxxxxxxxxxx>
Date: 13/03/2017 07:03 AM
Subject: [WEB400] JSON Syntax error
Sent by: "WEB400" <web400-bounces@xxxxxxxxxxxx>

The JSON below is an extract from a file produced by an exercise

bike. It

has a syntax error apparently but I'm danged if I can see what it is

-

admittedly I'm shaky on JSON so it is probably something obvious but

...

The array/collection/whatever that begins with as "workoutDate" is

the

part of the file that repeats. I've tried various minor corrections

on the

assumption that the error has to be trivial but without success.

{
"userName": "BERT ",
"userAge": 28,
"userWeight": 180,
"userGender": "M",
"userHeight": "72",
"mID": "GB"
} {
"workoutDate": {
"Month": 2,
"Day": 22,
"Year": 2016
},
"distance": 10.1,
"finishTime": {
"Hours": 13,
"Minutes": 38
},
"pctAverageHeartRateInZone": 0.0,
"averageSpeed": 15.1,
"totalWorkoutTime": {
"Hours": 0,
"Minutes": 40
},
"averageWattsPerHour": 75.0,
"totalCalories": 211.0,
"avgHeartRate": 129.3,
"avgRpm": 62,
"avgLevel": 4
}

Can somebody spot what the problem is here.

Jon Paris

www.partner400.com
www.SystemiDeveloper.com

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mailing list

To post a message email: WEB400@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/web400.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list
To post a message email: WEB400@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/web400.

--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>

--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>

--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>

--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>