268Part IIIDocument Objects ReferenceInvoking the replaceChild()method in the replace()function utilizes some of the samecode. The main difference is that the replaceChild()method requires a second parameter: a reference to the child element to be replaced. This demonstration replaces the final childnode of the ullist, so the function takes advantage of the lastChildproperty of all elementsto get a reference to that final nested child. That reference becomes the second parameter toreplaceChild(). Listing 15-21: Various Child Methods

Child Methods

• First Item
• Second Item