%JSON_ArraySetLength function

Function

Sets the length of an array.

Declaration
%JSON_ArraySetLength(
    INT in handle, 
    INT in length
 )
Parameters
handleHandle to JSON array.
lengthNew length of array
Return value

None

Description

The function sets the array length to the specified value. If the new length is less than the original, the items at the end of the field will be deleted. If the new length is greater than the original array length, the New Items will be set to null.

If it is an invalid handle on a JSON array or the specified length is less than 0, an exception is thrown.

Example
 INT _arr
 _arr := %JSON_CreateArray()
 
 %JSON_ArraySetLength(_arr, 2)
 %JSON_ArraySetValue(_arr, 1, 1.234)
 %JSON_ArraySetValue(_arr, 2, 3.142)

 %JSON_FreeArrayHandle(_arr)

Related pages:

JSON format manipulation functions
Function arguments - types

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