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Question 3/75
What are two unique features of functions defined with a fat arrow as compared to normal function definition?
Choose 2 answers
Choose 2 answers
Correct Answer: A,D
- Question List (75q)
- 7 commentQuestion 1: A developer is setting up a Node,js server and is creating a...
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- 3 commentQuestion 14: What is the result of the code block?...
- 2 commentQuestion 15: Which three options show valid methods for creating a fat ar...
- Question 16: Refer to the following object. (Exhibit) How can a developer...
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- 2 commentQuestion 42: A developer has the following array of hourly wages: Let arr...
- Question 43: A developer has two ways to write a function: Option A: func...
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- 2 commentQuestion 49: Given the code below: (Exhibit) What is logged to the consol...
- Question 50: Given the HTML below: (Exhibit) Which statement adds the pri...
- 1 commentQuestion 51: Refer to the code below? Let searchString = ' look for this ...
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Recent Comments (The most recent comments are at the top.)
Correct answer is Option B, C.
C. If the function has a single expression in the function body, the expression will be evaluated and implicitly returned.
This is a unique feature of arrow functions. If the body of the function consists of a single expression, you can omit the curly braces and the return keyword, and the expression will be implicitly returned.
B. The function uses the this from the enclosing scope.
Arrow functions do not have their own this context. Instead, they lexically inherit this from the surrounding code at the time they are defined, which means they use the this value from their enclosing scope. This makes arrow functions particularly useful for preserving the this context in situations like method definitions or callback functions.
A and C
B also its correct
because the function uses the this from the enclosing scope.
Why variant B is not correct?