Imposta la posizione iniziale di un Range relativamente a un altro Node.
range.setStartBefore(referenceNode);
Node prima del quale deve iniziare il Rangerange = document.createRange();
referenceNode = document.getElementsByTagName("div").item(0);
range.setStartBefore(referenceNode);
Il Node padre dell'inizio del Range sarà lo stesso di referenceNode.
RangeRange.cloneContents()Range.cloneRange()Range.collapse()Range.compareBoundaryPoints()Range.compareNode()Range.comparePointRange.createContextualFragment()Range.deleteContents()Range.detach()Range.extractContents()Range.getBoundingClientRect()Range.getClientRects()Range.insertNode()Range.intersectsNode()Range.isPointInRange()Range.selectNode()Range.selectNodeContents()Range.setEnd()Range.setEndAfter()Range.setEndBefore()Range.setStart()Range.setStartAfter()Range.setStartBefore()Range.surroundContents()Range.toString()AttrCDATASectionCharacterDataChildNodeCommentCustomEventDOMConfigurationDOMErrorDOMErrorHandlerDOMExceptionDOMImplementationDOMImplementationListDOMImplementationRegistryDOMImplementationSourceDOMLocatorDOMObjectDOMParserDOMStringDOMTimeStampDOMTokenListDOMUserDataDocumentDocumentFragmentDocumentTypeElementElementTraversalEntityEntityReferenceEventEventTargetHTMLCollectionMutationObserverNodeNodeFilterNodeIteratorNodeListNonDocumentTypeChildNodeProcessingInstructionPromiseResolverSelectionTextTextDecoderTextEncoderTimeRangesTreeWalkerTypeInfoUserDataHandlerXMLDocument