For developers > Server scripts > Functions description > JSON

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

Changing a specified text element of a JSON array by index. The index begins from 0.

Syntax

function JSONArraySetString(var sJSON: string; iIdx: integer; sValue: string): integer;

Parameters and return values

Parameter	Type	Value
var sJSON	string	JSON object as a text string;
iIdx	integer	index of the required array element;
sValue	string	the contents of the array element.

Function result

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

Example

var
  JSONArr, s: string;
begin
  JSONArr := '["first", "second", "third"]';
  
  mLogScript(JSONArr, 'before');
  
  JSONArrayGetString(JSONArr, 1, s);
  
  JSONArraySetString(JSONArr, 1, UpperCase(s));
  
  mLogScript(JSONArr, 'after');
end.

Script work result

[13:46:05] (Log "JSONArraySetString"): [before] ["first", "second", "third"]

[13:46:05] (Log "JSONArraySetString"): [after] ["first","SECOND","third"]

[13:46:05] (Run "JSONArraySetString"): Script operation time: 6 ms

[13:46:05] (Run "JSONArraySetString"): Script done successfully.

MyChat Scripts Engine: JSONArraySetString, change a string in a JSON array