The Text.wholeText read-only property returns all text of all Text nodes logically adjacent to the node. The text is concatenated in document order. This allows to specify any text node and obtain all adjacent text as a single string.
The TreeWalker.whatToShow read-only property returns an unsigned long being a bitmask made of constants describing the types of Node that must to be presented. Non-matching nodes are skipped, but their children may be included, if relevant. The possible values are:
The read-only property ValidityState.tooLong indicates if the value of an <input> or <textarea>, after having been edited by the user, exceeds the maximum code-unit length established by the element's maxlength attribute.