Posts by user3485590 • 311 points

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  A: Regular expression to detect credit card flag

  Link: /^((((636368)|(438935)|(504175)|(451416)|(636297))\d{0,10})|((5067)|(4576)|(4011))\d{0,12})$/ Hypercard: /^(606282\d{10}(\d{3})?)|(3841\d{15})$/…

  regex

  answered 10 years, 5 months ago user3485590 311