Those data types can be cloned:
Plain object, Array, TypedArray, number, string, null, undefined.
Those data types will be assgined using the orginal data:
BUILTIN_OBJECT
Instance of user defined class will be cloned to a plain object, without
properties in prototype.
Other data types is not supported (not sure what will happen).
Caution: do not support clone Date, for performance consideration.
(There might be a large number of date in series.data).
So date should not be modified in and out of .
Those data types can be cloned: Plain object, Array, TypedArray, number, string, null, undefined. Those data types will be assgined using the orginal data: BUILTIN_OBJECT Instance of user defined class will be cloned to a plain object, without properties in prototype. Other data types is not supported (not sure what will happen).
Caution: do not support clone Date, for performance consideration. (There might be a large number of date in
series.data). So date should not be modified in and out of .