Adobe Exam AD0-E213 Topic 7 Question 47 Discussion

Actual exam question for Adobe's AD0-E213 exam

Question #: 47
Topic #: 7

[All AD0-E213 Questions]

What does the JavaScript exception "x is not a non-null object" refer to?

AAn object was defined as 'non-null' but the code attempted to set it to null.

BAn object must have been null but it was not.

CAn object was expected but was not provided.

Show Suggested Answer

Suggested Answer: C

This exception indicates that a JavaScript object was expected but was not provided. This can happen when a variable is referenced without being defined, or when a parameter is expected but not provided. For more detailed information, please refer to the Mozilla Developer Network documentation (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Not_non-null_object).

by Magda at Aug 02, 2024, 09:36 AM

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Margurite

5 days ago

Looks like someone's trying to trip us up with this one. I'm gonna go with C and hope for the best. Time to break out the crystal ball!

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Talia

13 days ago

I think B makes more sense because the object must have been null but it was not.

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Gladys

16 days ago

This question is a real head-scratcher. I'm going with option A - someone tried to set a 'non-null' object to null. Somebody needs to learn about null checks.

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Haley

17 days ago

Hmm, this one's tricky. I'd say B is the right answer. An object was supposed to be non-null, but it ended up being null. Oops!

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Keneth

21 days ago

I'm guessing option C is the correct answer. An object was expected, but none was provided. Rookie mistake, really.

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Ciara

23 days ago

But if an object was defined as 'non-null' and set to null, wouldn't that cause the exception?

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Cheryll

26 days ago

Ah, the classic 'x is not a non-null object' error. Clearly, someone needs to brush up on their object handling skills.

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Gaston

11 days ago

Yeah, it's a common mistake to forget to define the object before using it.

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Marylyn

16 days ago

I've seen that error before. It usually means the object was expected but not provided.

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Sharmaine

27 days ago

I disagree, I believe it's C.

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Ciara

1 months ago

I think the answer is A.

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