Thank you to everyone for help in resolving this issue.
The syntax for determining if tArray[“status”] contains data or an array
appears to be either:
If the value of tArray[“status”] is not empty // contains data
or
If tArray[“status”] is not an array // contains data
If I remember correctly
>> (tArray["key1","key1.1"]["key2","key2.1"])
Sean never even thought about this form of arrays. I gotta test the
functionality of this. Thanks.
I know you are busy, but if you have the time, feel free to blow my mind.
On Wed, Mar 10, 2021 at 8:12 PM Sean Cole (Pi) via use-liveco
In the message box:
> put "data" into tArray["key1"]["key2"]; answer the value of tArray["key1”]
> - returns EMPTY (so this works)
Correct
put "data" into tArray["key1"]["key2"]; answer tArray["key1”] is empty -
> returns FALSE (it should return true IMHO)
Because it is not empty. It has a ne
This is a very interesting discussion of LC arrays. But back to the original
post:
> HENRY LOWE wrote:
>
> I am using multidimensional arrays to process data read from JSON files.
> Some of the data in the JSON files can be represented in alternative forms in
> files from different sources.
> F
What he said. :-)
Bob S
On Mar 9, 2021, at 10:19 AM, Ralph DiMola via use-livecode
mailto:use-livecode@lists.runrev.com>> wrote:
If (not(tArray[“status”] is an array)) and (tArray[“status”] is not empty) then
-- ***tArray[“status”] is not an array and is not empty.
As MW said empty is technic
If tArray [“status”] is an array or tArray [“status”] is not empty
It’s an odd array structure though if a key can contain either.
Bob S
On Mar 9, 2021, at 10:02 AM, HENRY LOWE via use-livecode
mailto:use-livecode@lists.runrev.com>> wrote:
Thanks to all for your excellent discussion and sugge
On 3/9/21 10:02 AM, HENRY LOWE via use-livecode wrote:
put "data" into tArray["key1"]["key2"]; answer tArray["key1”] is an array -
returns TRUE (so not helpful)
Not sure why this isn't helpful. Of course it's an array.
And tArray["key1"]["key2"] is *not* an array and contains the value.
None
...@lists.runrev.com] On Behalf Of
HENRY LOWE via use-livecode
Sent: Tuesday, March 09, 2021 1:03 PM
To: Nabble-Livecode-List
Cc: HENRY LOWE
Subject: Re: Multidimensional array issue
Thanks to all for your excellent discussion and suggestions.
To briefly restate the problem:
If tArray[“status
Try this:
put tArray[“status”][“text”] into tStatus
If tStatus is empty then
Put tArray[“status”] into tStatus
End if
Sent from my iPhone
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use-livecode@lists.runrev.com
Please visit this url to subscribe, unsubscribe an
Thanks to all for your excellent discussion and suggestions.
To briefly restate the problem:
If tArray[“status”] does not contain a value
and
If tArray[“status”][“text”] contains a value
How do I determine if tArray[“status”] contains a value?
In the message box:
put "data" into tArray["k
Thanks to all for your excellent discussion and suggestions.
To briefly restate the problem:
If tArray[=E2=80=9Cstatus=E2=80=9D] does not contain a value
and
If tArray[=E2=80=9Cstatus=E2=80=9D][=E2=80=9Ctext=E2=80=9D] contains a =
value
How do I determine if tArray[=E2=80=9Cstatus=E2=80=9D]
-boun...@lists.runrev.com] On Behalf Of
Bob Sneidar via use-livecode
Sent: Tuesday, March 09, 2021 12:24 PM
To: How to use LiveCode
Cc: Bob Sneidar
Subject: Re: Multidimensional array issue
The trouble is, if tDataA [“item”] variable does not exist, that is it is not
an array, you will still get empty.
Bob S
The trouble is, if tDataA [“item”] variable does not exist, that is it is not
an array, you will still get empty.
Bob S
On Mar 8, 2021, at 9:16 PM, Phil Davis via use-livecode
mailto:use-livecode@lists.runrev.com>> wrote:
When I want to determine whether or not an array element contains
non-
You might also want to make use of the 'strictly' keyword in case there are
any nested arrays in your base array. Your use case may not venture that
far but it is maybe worth just applying it anyway.
*put* (atest is strictly an array)
Sean
On Tue, 9 Mar 2021 at 16:09, Sean Cole (Pi) wrote:
> *
On 3/8/21 9:16 PM, Phil Davis via use-livecode wrote:
When I want to determine whether or not an array element contains
non-whitespace, I usually say:
if word 1 of tDataA["item"] is empty then ... (or is NOT empty)
The problem with that is that it doesn't differentiate between an empty
*put* empty into atest["test1"];
*put* 1 into atest["test2"];
*put* 3 into atest["test3"]["test3.1"];
*put* (atest is an array) , (atest["test1"] is an array) , (atest["test2"]
is an array) , (atest["test3"] is an array)
true,false,false,true
Seems fine to me.
Sean
_
Er, I think I have just reached the fourth level of array un-enlightenment.
Wait!…. I can see the cyberverse! SCHLOOOppp!-ting!
> On 3/8/21 5:36 PM, Bob Sneidar via use-livecode wrote:
>> Are you testing for empty, or are you testing if there is a value in an
>> array variable? If there is
When I want to determine whether or not an array element contains
non-whitespace, I usually say:
if word 1 of tDataA["item"] is empty then ... (or is NOT empty)
Just another option.
Phil Davis
On 3/8/21 5:36 PM, Bob Sneidar via use-livecode wrote:
Are you testing for empty, or are you
Are you testing for empty, or are you testing if there is a value in an array
variable? If there is no key matching your array variable, LC will return an
empty string. An empty string is a value.
Mark is using a different method, seeing if a key of an array is itself an
array. If bobtest ["va
On 3/8/21 4:58 PM, Ralph DiMola via use-livecode wrote:
Also works,
if tArray[“status”] an array -- It's an array
if (not (tArray[“status”] an array)) and (tArray[“status”] is not empty) --
it's a value
Well, technically "empty" is also a value.
Just an... er... empty one.
--
Mark Wiede
mailto:use-livecode-boun...@lists.runrev.com] On Behalf Of
HENRY LOWE via use-livecode
Sent: Monday, March 08, 2021 7:26 PM
To: Nabble-Livecode-List
Cc: HENRY LOWE
Subject: Re: Multidimensional array issue
Thanks Mark. There are two possible states:
tArray[“status”] holds a value and tArray[“status”][“t
On 3/8/21 4:25 PM, HENRY LOWE via use-livecode wrote:
My code is trying to do the following:
No, I *do* see what you're trying to do.
Here... try it for yourself:
on mouseUp pMouseBtnNo
local tArray
put "hello" into tArray["status"]
put tArray["status"] is an array into msg # false
.com] On Behalf Of
HENRY LOWE via use-livecode
Sent: Monday, March 08, 2021 7:26 PM
To: Nabble-Livecode-List
Cc: HENRY LOWE
Subject: Re: Multidimensional array issue
Thanks Mark. There are two possible states:
tArray[“status”] holds a value and tArray[“status”][“text”] does not
or
tArray[“status
ode
Sent: Monday, March 08, 2021 7:26 PM
To: Nabble-Livecode-List
Cc: HENRY LOWE
Subject: Re: Multidimensional array issue
Thanks Mark. There are two possible states:
tArray[“status”] holds a value and tArray[“status”][“text”] does not
or
tArray[“status”][“text”] holds a value and tArray[“status”]
Thanks Mark. There are two possible states:
tArray[“status”] holds a value and tArray[“status”][“text”] does not
or
tArray[“status”][“text”] holds a value and tArray[“status”] does not
My code is trying to do the following:
If tArray[“status”] does not hold a value then check if
tArray[“stat
On 3/8/21 3:46 PM, HENRY LOWE via use-livecode wrote:
I have often used the form 'if tArray[“key1”] is empty' to determine whether an
array element hold a value but this breaks if tArray[“key1”][“key2”] holds a
value.
Same here. Not that I've every liked that paradigm, just that it's been
t
I am using multidimensional arrays to process data read from JSON files.
Some of the data in the JSON files can be represented in alternative forms in
files from different sources.
For example a field named “status” may be represented as either:
“status": {
"text": “active"}
or
“status":
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