Each of these methods returns a node that was passed to as an input
parameter. My question is whether the return value is always the same as
the input value.
For example, if I pass DOMNode foo to replaceChild as the OldChild, will
the return value of the function always be foo? I need to know if my code
needs to check for the return value or if I can assume that the value is
always the same.
Note: In the past I had been led to believe that they were always the same,
but I wanted to check this before my code goes beta.
Thanks!
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