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JavaScript Regular Expressions in JavaScript Regular Expressions Matching Specific Characters

Kieran Barker
Kieran Barker
15,028 Points
Posted by Kieran Barker
Kieran Barker
15,028 Points

How can I match 'ladybug' and 'fading rug!' in RegEx only using the '?', '.' or '[]' special characters?

I'm following along with the 'Regular Expressions in JavaScript' course. How can I match 'ladybug' and 'fading rug!' only using the '?', '.' and '[]' special RegEx characters? It should be possible with these alone but I can't figure it out. Thanks :)

3 Answers

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

With regex, there will usually be more than one way to create a match. Here's one example using only ? and []:
:point_right: [lf]ad[yi]n?g? ?[br]ug!?
And here's another one that is more concise (and less exclusive) using only . and ?:
:point_right: .ad.n?g? ?.ug!?

Greg Witt
Greg Witt
27,133 Points
Greg Witt
Greg Witt
27,133 Points

This one was pretty difficult! Thanks for the help Steven. I kept getting the ing rug! but could get anything else preceding that. Thanks!