Adobe Exam AD0-E720 Topic 4 Question 19 Discussion

Actual exam question for Adobe's AD0-E720 exam

Question #: 19
Topic #: 4

An Adobe Commerce developer wants to apply a knockout binding to a

to run a function, onClick(), when it's clicked. Which two solutions would the developer use to achieve this? (Choose two.)

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Show Suggested 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:

: 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.

: 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:

: 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.

: 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.

by Daniela at May 21, 2024, 10:38 PM

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Nieves

5 months ago

I'm not sure why anyone would even consider option A. That's just nonsense. C is the only rational choice in my opinion.

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6 months ago

I think option C is the way to go here. It's a straightforward implementation of the data-bind attribute to trigger the onClick function.

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Temeka

5 months ago

I think option B could also work, using the knockout comment syntax.

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Ettie

5 months ago

I agree, option C is the correct way to apply the knockout binding.

upvoted 0 times

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