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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]
Topic #: 4
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)
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.
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