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Regex

75 challenges · Practitioner to Specialty

2 Easy1 Medium72 Hard

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All Regex challenges

Regex: what is regex

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Regex: use

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Regex: literal

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Regex: dot

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Regex: star

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Regex: plus

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Regex: question

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Regex: braces

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Regex: anchor start

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Regex: anchor end

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Regex: char class

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Regex: Pattern description

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Regex: range class

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Regex: negate class

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Regex: digit class

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Regex: word class

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Regex: whitespace

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Regex: non digit

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Regex: word boundary

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Regex: escape

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Regex: alternation

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Regex: group

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Regex: backreference

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Regex: non capture

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Regex: named group

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Regex: greedy

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Regex: lazy

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Regex: greedy meaning

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Regex: lazy meaning

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Regex: lookahead

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Regex: neg lookahead

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Regex: lookbehind

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Regex: lookaround zero width

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Regex: flag i

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Regex: flag g

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Regex: flag m

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Regex: flag s

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Regex: escape special

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Regex: quantifier target

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Regex: caret in class

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Regex: dash in class

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Regex: capture use

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Regex: replace

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Regex: split

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Regex: email pattern

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Regex: catastrophic

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Regex: redos

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Regex: anchoring full

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Regex: optional group

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Regex: one or more group

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Regex: dot star

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Regex: escape backslash

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Regex: unicode

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Regex: multiline anchor

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Regex: tab

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Regex: newline

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Regex: quantifier exact

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Regex: quantifier min

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Regex: character escape in class

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Regex: regex engine

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