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You need to update a user's email and then delete their old address record using Angular's HttpClient. Which sequence correctly performs these operations?

hard📝 component behavior Q8 of 15
Angular - HTTP Client
You need to update a user's email and then delete their old address record using Angular's HttpClient. Which sequence correctly performs these operations?
ACall <code>post('/api/users', updatedEmail)</code> then <code>delete('/api/addresses/oldId')</code>
BCall <code>delete('/api/addresses/oldId')</code> first, then <code>put('/api/users/1', updatedEmail)</code>
CCall <code>put('/api/users/1', updatedEmail)</code> first, then <code>delete('/api/addresses/oldId')</code>
DCall <code>put('/api/addresses/oldId', updatedEmail)</code> then <code>delete('/api/users/1')</code>
Step-by-Step Solution
Solution:
  1. Step 1: Update user email

    Use PUT on the user resource URL with updated email data.
  2. Step 2: Delete old address

    Use DELETE on the old address resource URL.
  3. Step 3: Sequence matters

    Update first to ensure data consistency, then delete obsolete data.
  4. Final Answer:

    Call put('/api/users/1', updatedEmail) first, then delete('/api/addresses/oldId') -> Option C
  5. Quick Check:

    Update then delete in sequence [OK]
Quick Trick: Update resource with PUT, then delete obsolete with DELETE [OK]
Common Mistakes:
MISTAKES
  • Deleting before updating causing data loss
  • Using POST instead of PUT for update
  • Mixing resource URLs

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