util.JSONObject.getKeys()returns a key list of members of the JSON object.
Syntax
CALL util.JSONObject.getKeys()
Usage and examples
MAIN
DEFINE jo util.JSONObject
DEFINE arr DYNAMIC ARRAY OF STRING
CALL jo.insert( "k1", "v1" )
CALL jo.insert( "k2", "v2" )
CALL jo.insert( "k3", "v3" )
CALL jo.getKeys() RETURNING arr
DISPLAY arr
END MAIN