toClassNamesList
function toClassNamesList(
  input: IClassNamesListLike,
): IClassNamesList
type IClassNamesListAsString = string;
type IClassNamesListAsIterable = Iterable<string>;
type IClassNamesListLike =
  | IClassNamesList
  | IClassNamesListAsString
  | IClassNamesListAsIterable
  ;
Definition​
Converts a string, an Iterable<string> or a Set<string>  into a IClassNamesList (alias for Set<string>).
Useful when we have to cast a non-normalized value to a list of class names.
Example​
const classNamesListRaw$ = single(['class-a', 'class-b']);
const classNamesList$ = map$$(classNamesListRaw$, toClassNamesList);
node.setReactiveClassNamesList(classNamesList$);