[Solved] What is wrong with this PUT request code? this.http.put('/api/users', 10, updatedUser).subscribe(); - Ans: The second argument should be the data object, not a number. | Angular

Angular - HTTP Client

What is wrong with this PUT request code?

this.http.put('/api/users', 10, updatedUser).subscribe();

AThe URL should not be a string.

BThe second argument should be the data object, not a number.

Csubscribe() cannot be called without a callback.

DThe data object must be the third argument.

Step-by-Step Solution

Solution:

Step 1: Review HttpClient PUT method signature
PUT takes URL (string), body (data object), and optionally an options object.
Step 2: Identify incorrect arguments
Passing 10 as second argument (intended as ID) is wrong; updatedUser should be the second argument (body), with ID in URL like '/api/users/10'.
Final Answer:
The second argument should be the data object, not a number. -> Option B
Quick Check:
PUT args = URL + data object [OK]

Quick Trick: PUT: URL first, data second [OK]

Common Mistakes:

MISTAKES

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What is wrong with this PUT request code?