Reference given by msdn about setEndPoint_Basic knowledge

Regarding setEndPoint, the reference given by msdn is:

TextRange.setEndPoint(sType, oTextRange)

oTextRange is another TextRange object

sType is a string type. There are 4 options.
StartToEnd
StartToStart
EndToStart
EndToEnd

"A text range has two endpoints: one at the beginning of the text range and one at the end."
text range There are 2 endpoints, one at the beginning and one at the end

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