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Adobe AD0-E213 Exam - Topic 6 Question 29 Discussion

When may the JavaScript exception 'TypeError: "x" is not a function' occur?
C) When the type of the value returned by function V does not match its declared type.
A) When function V shares its name with a variable define earlier.
B) When function V is called after it is defined.

Adobe AD0-E213 Exam - Topic 6 Question 29 Discussion

Actual exam question for Adobe's AD0-E213 exam
Question #: 29
Topic #: 6
[All AD0-E213 Questions]

When may the JavaScript exception 'TypeError: "x" is not a function' occur?

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Suggested Answer: C

The JavaScript exception 'TypeError: 'x' is not a function' occurs when the type of the value returned by function V does not match its declared type. For example, if a function is declared to return an integer but returns a string instead, this exception will occur. This can happen when incorrect data types are used or when the function is called with the wrong number of arguments. Reference: https://www.adobe.com/content/dam/acom/en/devnet/analytics/analytics-developer-professional-study-guide.pdf


by Fannie at Oct 18, 2023, 05:39 AM

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Salome
10 months ago
I've seen it pop up in other scenarios too, like undefined variables.
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Twana
10 months ago
Wait, are you sure it only happens with naming conflicts?
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Stanton
10 months ago
I think it can also happen if you try to call something that isn't a function.
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Caitlin
10 months ago
Totally agree, naming conflicts can be tricky!
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Layla
11 months ago
Happens when a variable name conflicts with a function name.
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Jenise
11 months ago
I don't think it's about the return type since that usually leads to different errors. I feel like it has to do with how functions are called or defined.
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Curtis
11 months ago
I practiced a question similar to this, and I believe it relates to how JavaScript handles variable hoisting. So, maybe option A is correct?
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Melissia
11 months ago
I'm not entirely sure, but I remember something about calling functions before they are defined. That could be a reason for the TypeError, right?
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Luther
11 months ago
I think the error might happen when a variable is mistakenly used as a function, like if I defined a variable with the same name as a function.
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Fausto
11 months ago
I'm not totally sure about this, but I think it has to do with how the function is defined and when it's called. I'll need to think through the different scenarios.
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Yolando
11 months ago
I'm feeling pretty confident about this one. I know the TypeError can happen when you try to call something that's not a function, so I'll focus on that.
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Gail
11 months ago
Okay, I've got a strategy for this. I'll go through each option and think about the different ways a TypeError can happen when calling a function.
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Kayleigh
11 months ago
This looks like a tricky one! I'll need to think carefully about the different ways a TypeError can occur.
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Shelia
12 months ago
Hmm, I'm a bit confused by this question. I'll have to review my notes on function declarations and variable scope.
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Maricela
12 months ago
This looks like a pretty straightforward question. I think password hash synchronization is the way to go here since it allows us to enforce the on-premises AD password complexity policies and enable SSPR in Azure AD.
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Dorthy
12 months ago
This looks like a straightforward question on monetary policy. I'm pretty confident I know the answer - it's about the government controlling economic activity by influencing interest rates.
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Shalon
12 months ago
Alright, let me think this through. I believe the table's constraints need to be disabled, and row movement must be enabled. Time to double-check the details.
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