How a jk flip flop can a converted in to d flip flop?

This webpage have a detailed instruction on how to convert a D flip flop to a JK flip flop: Link: http://www.play-hookey.com/digital/converting_ff_inputs.html

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we can convert S-R flip flop very easily by neglecting the s-terminal

A T flip-flop can be converted in to a D flip-flop by introducing an inverter in the conductor that links the j and k terminals in the T flip-flop.

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