ReadonlycollapsedThe read-only collapsed property of the AbstractRange interface returns true if the range's start position and end position are the same.
ReadonlyendThe read-only endContainer property of the AbstractRange interface returns the Node in which the end of the range is located.
ReadonlyendThe endOffset property of the AbstractRange interface returns the offset into the end node of the range's end position.
ReadonlystartThe read-only startContainer property of the AbstractRange interface returns the Node in which the start of the range is located.
ReadonlystartThe read-only startOffset property of the AbstractRange interface returns the offset into the start node of the range's start position.
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AbstractRangeabstract interface is the base class upon which all DOM range types are defined. A range is an object that indicates the start and end points of a section of content within the document.MDN Reference