Salesforce Exam Javascript Developer I Topic 4 Question 65 Discussion

Actual exam question for Salesforce's Javascript Developer I exam

Question #: 65
Topic #: 4

[All Javascript Developer I Questions]

Refer to the codebelow:

function foo () {

const a =2;

function bat() {

console.log(a);

}

return bar;

}

Why does the function bar have access to variable a ?

AInner function's scope

BHoisting

COuter function's scope

DPrototype chain

Show Suggested Answer

Suggested Answer: C

by Glenn at Aug 09, 2023, 06:28 PM

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Willow

1 months ago

Wow, this is a classic closure question. I bet the exam writer is chuckling to themselves, thinking 'Muahaha, let's see if they understand scope!'

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Helaine

2 days ago

C) Outer function's scope

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Hayley

15 days ago

A) Inner function's scope

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Charlesetta

1 months ago

Wait, is this a trick question? I mean, how can the prototype chain be involved here? C is the obvious choice.

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Mireya

6 days ago

C) Outer function's scope

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Tish

7 days ago

B) Hoisting

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Luisa

9 days ago

C) Outer function's scope

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Providencia

13 days ago

B) Hoisting

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Jovita

14 days ago

A) Inner function's scope

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Una

22 days ago

A) Inner function's scope

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Dana

2 months ago

Haha, I almost went with B) Hoisting. That would've been a rookie mistake! C is the correct answer, of course.

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Sharen

29 days ago

Exactly! It's all about the scope chain.

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Aileen

1 months ago

C) Outer function's scope

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Celeste

1 months ago

Oh, I see. That makes sense now.

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Brandon

2 months ago

A) Inner function's scope

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Huey

2 months ago

Definitely C. Closures, baby! The inner function `bat()` has access to the variables in its enclosing function's scope.

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Quentin

1 months ago

C) Outer function's scope

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Delila

2 months ago

A) Inner function's scope

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Chara

2 months ago

The answer is C) Outer function's scope. The nested function `bat()` has access to the variable `a` because it's defined in the outer function `foo()'s scope.

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Svetlana

3 months ago

Hmm, that makes sense. Hoisting does allow inner functions to access variables from outer functions.

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Tyisha

3 months ago

I believe it's because of hoisting.

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Svetlana

3 months ago

I think the function bar has access to variable a because of outer function's scope.

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