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"For developers", "Server scripts", "Functions description", "JSON", JSONArrayGetDouble.

Get the fractional number from JSON array by index. The numeration begins with 0.

Syntax

function JSONArrayGetDouble(sJSON: string; iIdx: integer; var iValue: double): integer;

Prameters and return values

Parameter	Type	Value
sJSON	string	JSON object in a text form;
iIdx	integer	index of the array element;
var iValue	double	the content of the array element.

Function result

-1	JSON parsing error;
-2	incorrect index or array element type;
0	function done successfully.

Example

const
  COUNT = 5;
var
  sJSON: string;
  i: integer;
  dt: double;
begin
  JSONArraySetLength(sJSON, COUNT);
  
    for i := 1 to COUNT do JSONArraySetDouble(sJSON, i - 1, IncMonth(Now, i));
  
  mLogScript(sJSON, '');
  
    for i := 1 to COUNT do begin
      JSONArrayGetDouble(sJSON, i - 1, dt);
      mLogScript(FormatDateTime('mmm', dt), IntToStr(i));
    end;
end.

Script work result

[16:35:07] (Log "JSONArrayGetDouble"): [43777.6910638194,43807.6910638194,43838.6910638194,43869.6910638194,43898.6910638194]

[16:35:07] (Log "JSONArrayGetDouble"): [1] nov

[16:35:07] (Log "JSONArrayGetDouble"): [2] dec

[16:35:07] (Log "JSONArrayGetDouble"): [3] jan

[16:35:07] (Log "JSONArrayGetDouble"): [4] feb

[16:35:07] (Log "JSONArrayGetDouble"): [5] mar

[16:35:07] (Run "JSONArrayGetDouble"): Script operation time: 4 ms

[16:35:07] (Run "JSONArrayGetDouble"): Script done successfully.

MyChat Scripts: JSONArrayGetDouble, get the fractional number from JSON array