Interface: ToggleableClassNameRecord
A record of class names which can be bound to an HTML element's class
attribute through JSX. Each of the record's
keys defines a class name, and the key's value is a boolean or boolean-valued Subscribable
that determines whether
the class name appears in the element's class list.
Indexable
▪ [className: string
]: boolean
| Subscribable
<boolean
>