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Adobe Exam AD0-E720 Topic 4 Question 19 Discussion

Actual exam question for Adobe's AD0-E720 exam
Question #: 19
Topic #: 4
[All AD0-E720 Questions]

An Adobe Commerce developer is implementing a sticky sidebar using a jQuery widget. How would the developer initialize the block in a JavaScript file?

A)

C)

Show Suggested Answer Hide Answer
Suggested Answer: A, C

To apply a knockout binding to a

to run a function, onClick(), when it's clicked, the developer can use either of the following solutions:

A)

: This solution will use the click binding to execute the onClick() function as an expression when the
is clicked. The function will be called with the current binding context as the first parameter and the event object as the second parameter.

C)

: This solution will use the click binding to execute the onClick function as a reference when the
is clicked. The function will be called with the current binding context as the first parameter and the event object as the second parameter.

The following solutions are not valid and will not work:

B)

<!-- ko click: 'onClick' --><!-- /ko -->
: This solution will use the virtual element syntax to apply the click binding, but it will pass a string literal instead of a function expression or reference. This will cause an error, as the click binding expects a function value.

D)

: This solution will use a custom attribute instead of a data-bind attribute to apply the click binding. This is not supported by knockout and will not have any effect.


Contribute your Thoughts:

Erick
2 months ago
Option A seems logical, but I wonder if the developer needs to pass any configuration options to the stickyWidget() method. Better double-check the documentation.
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Carolynn
16 days ago
That's a good practice, better safe than sorry.
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Avery
1 months ago
I always like to double-check before implementing anything new.
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Glenna
1 months ago
I agree, but it wouldn't hurt to check the documentation just in case.
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Ernestine
2 months ago
I think Option A is the way to go.
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Viva
2 months ago
Ha! Option B has 'Hammer time!' in the code. That's a classic. But I doubt that's the right way to do it.
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Tequila
2 months ago
I'm not sure, but Option C looks a bit too complex for a simple sticky sidebar implementation. Maybe I'm missing something.
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Nu
2 months ago
Why do you think Option C is better? I think Option A provides a more efficient solution.
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Markus
2 months ago
Option A looks like the correct answer. Initializing the jQuery widget with $('.sidebar').stickyWidget() seems straightforward.
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Sharan
23 days ago
Great, Option A it is then.
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Adela
24 days ago
I agree, let's go with Option A.
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Shawna
1 months ago
Yeah, initializing with $('.sidebar').stickyWidget() seems simple.
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Ivan
2 months ago
I think Option A is the way to go.
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Whitney
3 months ago
I disagree, I believe Option C is the best way to initialize the block.
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Nu
3 months ago
I think the developer should initialize the block using Option A.
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