Tell us what’s happening:
I’m confused. The ^ negates a character set, right?
So why does this solution call for /^(\d+)\s\1\s\1$/ ? Does the carat work differently here? How??
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Challenge: Reuse Patterns Using Capture Groups
Link to the challenge:
Yes, when used in a character set:
[^a-z] // not a-z
Yes, it is used at the beginning of the regex so it means to anchor the regex to the beginning of the string. In other words, no other characters can come before it.
/^(\d+)
“0…” matches.
“a0…” does not match.
I see so it has a whole another use. Thanks!
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