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Exam Certified Platform Developer II All Questions

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Exam Certified Platform Developer II topic 1 question 343 discussion

Actual exam question from Salesforce's Certified Platform Developer II
Question #: 343
Topic #: 1
[All Certified Platform Developer II Questions]

A developer is creating a Lightning web component that displays a list of records in a lightning-datatable. After saving a new record to the database, the list is not updating.



What should the developer change in the code above for this to happen?

  • A. Add the @track decorator to the data variable.
  • B. Create a new variable to store the result and annotate it with @track.
  • C. Create a variable to store the result and call refreshApex().
  • D. Call refreshApex() on this.data.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by BrucePark at Aug. 19, 2023, 6:13 a.m.

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dasabhisek404
4 months, 1 week ago
Selected Answer: C
C is correct, you have to send whole result into refreshApex to get latest data.
upvoted 3 times
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MarkusT
5 months, 2 weeks ago
C is correct. The "data" variable only stores the "data" part of "result". However, following the same link everyone posted here, salesforce docs clearly say that the wired function should use the entire "result" parameter in a wired function. Hence, we need to store "result" in a new variable and then call refreshApex on it.
upvoted 2 times
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Yas010101
10 months ago
Selected Answer: D
https://developer.salesforce.com/docs/platform/lwc/guide/apex-result-caching.html
upvoted 1 times
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BrucePark
1 year, 2 months ago
Selected Answer: D
Isn't it D? Because records is a wire function and assigns the result to this.data. So, this.data is the variable currently holding the displayed data.
upvoted 2 times
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