IMutationObserverInit
Defines a set of options to use with the mutation observer.
Gets or sets if the attributes to observe. If this is not set,
then all attributes are being observed.
Gets or sets if mutations to target's attributes are to be observed.
Gets or sets if additions and removals of the target node's child
elements (including text nodes) are to be observed.
Gets or sets if mutations to target's data are to be observed.
Gets or sets if mutations to not just target, but also
target's descendants are to be observed.
Gets or sets if attributes is set to true and target's attribute
value before the mutation needs to be recorded.
Gets or sets if characterData is set to true and target's
data before the mutation needs to be recorded.