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a*a* — zero or more aKleene StarFormal RE✨ Emoji Combos

a* = ε ∪ a ∪ aa ∪ aaa ∪ … Zero repetitions gives ε; more repetitions concatenate copies of a.

✓ Accepts

εaaaaaaa

✗ Rejects

babba

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Regular Expression Pattern

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Test String

Annotation

Unable to parse pattern

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gglobal: Don't return after first match

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