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@JsonListValues ( json ; keyOrIndexOrPath )

Preserves the index of JSON array elements for processing by the GetValue() function.

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Alex Zueiv - Show more from this author Tashkent https://github.com/zueiv

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/** * @JsonListValues ( json ; keyOrIndexOrPath ) * * Encloses the null and string elements of a JSON array in square brackets * to preserve the element index for processing by the GetValue() function. * * Usage example: * * @JsonListValues ( "[null,\"A\rB\",{\"C\":1}]" ; "" ) * * Result: * * [null] * ["A\rB"] * {"C":1} * * Created 2022-05-09 by Alex Zueiv * 2022-05-10: Fixed to pass non-arrays to the original function as is. * * https://www.briandunning.com/cf/2590 **/ "" & Let ( json = "" & JSONGetElement ( json ; keyOrIndexOrPath ) ; Case ( Left ( json ; 1 ) = "[" ; JSONListValues ( Substitute ( JSONFormatElements ( json ) ; [ ¶ & Char(9) & "null" ; ¶ & Char(9) & "[null]" ] ; [ ¶ & Char(9) & "\"" ; ¶ & Char(9) & "[\"" ] ; [ "\",¶" & Char(9) & "[" ; "\"],¶" & Char(9) & "[" ] ; [ "\",¶" & Char(9) & "{" ; "\"],¶" & Char(9) & "{" ] ; [ "\",¶" & Char(9) & "t" ; "\"],¶" & Char(9) & "t" ] ; [ "\",¶" & Char(9) & "f" ; "\"],¶" & Char(9) & "f" ] ; [ "\",¶" & Char(9) & "-" ; "\"],¶" & Char(9) & "-" ] ; [ "\",¶" & Char(9) & 0 ; "\"],¶" & Char(9) & 0 ] ; [ "\",¶" & Char(9) & 1 ; "\"],¶" & Char(9) & 1 ] ; [ "\",¶" & Char(9) & 2 ; "\"],¶" & Char(9) & 2 ] ; [ "\",¶" & Char(9) & 3 ; "\"],¶" & Char(9) & 3 ] ; [ "\",¶" & Char(9) & 4 ; "\"],¶" & Char(9) & 4 ] ; [ "\",¶" & Char(9) & 5 ; "\"],¶" & Char(9) & 5 ] ; [ "\",¶" & Char(9) & 6 ; "\"],¶" & Char(9) & 6 ] ; [ "\",¶" & Char(9) & 7 ; "\"],¶" & Char(9) & 7 ] ; [ "\",¶" & Char(9) & 8 ; "\"],¶" & Char(9) & 8 ] ; [ "\",¶" & Char(9) & 9 ; "\"],¶" & Char(9) & 9 ] ; [ "\"¶]" ; "\"]¶]" ] ) ; "" ) ; Left ( json ; 1 ) ≠ "?" ; JSONListValues ( json ; "" ) ; json ) ) Click to copy

Encloses the null and string elements of a JSON array in square brackets to preserve the element index for processing by the GetValue() function.

 

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