[Solved] You want to create a standalone pipe that formats a date string to uppercase and then... Which of the following is the correct way to chain these transformations inside the pipe's transform method? | Angular

Angular - Standalone Components

You want to create a standalone pipe that formats a date string to uppercase and then reverses it. Which of the following is the correct way to chain these transformations inside the pipe's transform method?

Areturn value.split('').reverse().join('').toUpperCase();

Breturn value.toUpperCase().split('').reverse().join('');

Creturn value.reverse().toUpperCase();

Dreturn value.toUpperCase().reverse().join('');

Step-by-Step Solution

Solution:

Step 1: Understand string methods chaining
To uppercase then reverse, first call toUpperCase(), then split to array, reverse array, and join back.
Step 2: Evaluate options
return value.toUpperCase().split('').reverse().join(''); correctly chains methods in order. return value.split('').reverse().join('').toUpperCase(); reverses before uppercase, C uses invalid reverse on string, D calls reverse on string directly.
Final Answer:
return value.toUpperCase().split('').reverse().join(''); -> Option B
Quick Check:
Uppercase then reverse = toUpperCase + split + reverse + join [OK]

Quick Trick: Strings need split before reverse, then join after [OK]

Common Mistakes:

Calling reverse directly on string
Reversing before uppercase
Missing join after reverse

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More Angular Quizzes

Which of the following is the correct way to chain these transformations inside the pipe's transform method?

Step 1: Understand string methods chaining

Step 2: Evaluate options

Final Answer:

Quick Check:

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