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HFSJ mock exam doubt

 
dolly shah
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I don't understand the HFSJ final mock exam example no:55. Please anyone can explain who has the book?
 
Marc Peabody
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The question is testing your knowledge on when the valueBound and valueUnbound listener methods will be triggered.
 
dolly shah
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Thanks Marc for the reply. But the bound & unbound mechanism I don't understand.Why the answer is "BBUBUB"? I thought it's "BUBBUB". Please can you explain. Because I am very near to take the exam. I need help.
 
Christophe Verré
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There's been a lot of "hot" discussion in the past on this topic. Search for "BBUBUB" or "BUBBUB" in the SCWCD forum.
 
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