1.range

My Hello World

html

oRange1 Start Container:
Start Offset:
End Container:
End Offset:
Common Ancestor:

oRange2 Start Container:
Start Offset:
End Container:
End Offset:
Common Ancestor:

selectNode()
startContainer, endContainer, and commonAncestorContainer are all equal to the parent node of the node that was passed in;

startOffset is equal to the index of the given node within the parent's childNodes collection
endOffset is equal to the startOffset plus one (because only one node is selected)

selectNodeContents()
startContainer, endContainer, and commonAncestorContainer are equal to the node that was passed in;

startOffset is equal to 0
endOffset is equal to the number of child nodes (node.childNodes.length)