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Adobe Exam AD0-E213 Topic 5 Question 55 Discussion

Actual exam question for Adobe's AD0-E213 exam
Question #: 55
Topic #: 5
[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 Antonio at Oct 21, 2024, 09:16 AM

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Katheryn
3 months ago
This question is like a game of JavaScript Jeopardy. I'll take 'Unexpected Behavior' for 500, Alex.
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Isabella
3 months ago
C) When the type of the value returned by function V does not match its declared type.
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Valene
3 months ago
B) When function V is called after it is defined.
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Elvis
3 months ago
A) When function V shares its name with a variable define earlier.
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Andree
4 months ago
I don't know, but I heard if you throw your computer out the window, it fixes all JavaScript problems. Though I wouldn't recommend trying that.
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Izetta
3 months ago
C) When the type of the value returned by function V does not match its declared type.
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Lilli
3 months ago
B) When function V is called after it is defined.
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Jacqueline
3 months ago
A) When function V shares its name with a variable define earlier.
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Lavina
4 months ago
I thought this was going to be easy, but now I'm second-guessing myself. Is it C? JavaScript can be so tricky sometimes.
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Thomasena
3 months ago
C) When the type of the value returned by function V does not match its declared type.
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Yvette
3 months ago
B) When function V is called after it is defined.
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Lisbeth
3 months ago
A) When function V shares its name with a variable define earlier.
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Barabara
4 months ago
I agree with Veronica. If the function is called before it is defined, it can lead to that error.
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Azalee
4 months ago
Ah, the perils of dynamic typing. I bet the correct answer is B - calling a function before it's defined.
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Herschel
3 months ago
Definitely, it's a common mistake to make when working with JavaScript functions.
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Ressie
3 months ago
I've encountered that error before, it can be tricky to debug if you're not careful with function definitions.
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Glendora
3 months ago
Yes, it's important to make sure functions are defined before calling them to avoid that TypeError.
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Staci
4 months ago
I think you're right, calling a function before it's defined can definitely cause that error.
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Herman
4 months ago
This is a common error I've encountered when I forget to add parentheses after calling a function. Rookie mistake!
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Johnson
4 months ago
It's a common mistake, but easy to fix once you know what caused it.
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Gayla
4 months ago
Yeah, forgetting to add parentheses can definitely cause that error.
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Nakita
4 months ago
I've made that mistake before too. Always remember those parentheses!
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Veronica
4 months ago
I think the JavaScript exception may occur when function V is called after it is defined.
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