What is the function of a single asterisk (*) in an ML exclusion pattern?
Suggested Answer: B
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The asterisk is a wildcard character that can be used in exclusion patterns to match any number of characters. However, it does not match separator characters, such as or /, which are used to separate portions of a file path. For example, the patternC:Windows**.exewill match any executable file in any subfolder of the Windows folder, but not in the Windows folder itself.
15 comments · newest first
JE
Jerry
1 month ago
D is definitely wrong. It’s not just about starting.
BE
Bettina
1 month ago
C is interesting, but I don’t think it fits here.
CH
Cheryl
1 month ago
I lean towards B too. Separators are tricky!
LA
Laticia
2 months ago
A seems correct. It covers all characters.
LA
Laura
2 months ago
I feel like B makes more sense. No separators included.
JO
Jody
2 months ago
I think it's A. It matches everything, right?
MA
Marvel
2 months ago
Nope, it matches everything, including slashes!
HA
Harrison
2 months ago
I think it’s just for starting expressions, right?
GI
Gilma
2 months ago
Wait, does it really include separators? I thought it didn't!
AN
Antonio
3 months ago
Totally agree, it's super flexible.
DE
Detra
3 months ago
A single asterisk matches any number of characters, even none!
BE
Beatriz
3 months ago
I feel like the asterisk is definitely not just for starting expressions. That sounds off to me, but I can't remember the exact details.
JU
Julianna
3 months ago
I’m a bit confused about the role of the asterisk. I thought it was just for matching characters, but I can't recall if it has anything to do with variable lists.
CE
Cecily
3 months ago
I remember practicing a question similar to this, and I think the asterisk does include separators. So, I might lean towards option A.
LA
Laurel
3 months ago
I think the single asterisk matches any number of characters, but I'm not sure if it includes separators like \ or /.