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Salesforce Exam Javascript Developer I Topic 3 Question 92 Discussion

Actual exam question for Salesforce's Javascript Developer I exam
Question #: 92
Topic #: 3
[All Javascript Developer I Questions]

Refer to the code below:

const car = {

price:100,

getPrice:function(){

return this.price;

}

};

const customCar = Object.create(car);

customCar.price = 70;

delete customCar.price;const result = customCar.getPrice();

Whatis the value of result after the code executes?

Show Suggested Answer Hide Answer
Suggested Answer: A

by Ranee at Sep 14, 2024, 10:05 AM

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Paola
6 months ago
Hmm, this one's got me stumped. I'll go with B) undefined, but I hope I'm wrong - that would be a real 'car-tastrophe'!
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Markus
6 months ago
Clearly the answer is B) undefined. Deleting a property is like making it disappear - no more 'price' property means no more 'this.price' to return.
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Long
5 months ago
Yes, the value of result will be undefined after deleting the 'price' property.
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Melissia
5 months ago
I agree, deleting the 'price' property makes the result undefined.
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Avery
6 months ago
I think the answer is B) undefined.
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Hyman
6 months ago
Easy peasy, the answer is B) undefined. When you delete a property, it's gone, and 'this.price' will return nothing.
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Vivienne
5 months ago
D) 70
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Valentine
6 months ago
C) null
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Shala
6 months ago
B) undefined
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Clement
6 months ago
A) 100
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Craig
7 months ago
I agree with France, the value of result is undefined because customCar.price was deleted.
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Sanda
7 months ago
I'm going with D) 70. Even though the 'price' property is deleted, the 'customCar' object still inherits the 'price' property from the 'car' object, so 'getPrice' should return 70.
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France
7 months ago
I believe the value of result is undefined.
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Rebeca
7 months ago
Definitely B) undefined. Deleting the 'price' property from the 'customCar' object means it will no longer have a local 'price' property, so 'this.price' will return undefined when called.
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Weldon
6 months ago
So, the correct answer is B) undefined.
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Bronwyn
6 months ago
Yes, deleting the 'price' property will make it undefined.
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Shay
6 months ago
I believe it is B) undefined as well.
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Barney
6 months ago
I think the value of result is B) undefined.
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Jerilyn
7 months ago
I think the value of result is 100.
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Grover
7 months ago
Hmm, this is tricky. I think the answer is B) undefined. The 'customCar' object inherits the 'getPrice' method from the 'car' object, but the 'price' property is deleted, so 'this.price' will return undefined.
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Zachary
6 months ago
That's correct! The value of result will be undefined.
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Lamar
6 months ago
I think the answer is B) undefined.
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