javascript - regex to allow string, string followed by numbers, and hyphen -


this question has answer here:

i wanna regex allow following samples

1) abcd 2) abcd123 3) abcd-123

which should not allow 

1) 123abcd 2) 123 3) 123-123

you can use regex: 

/^[a-z]+-?\d*$/i

regex breakup:

  • ^ - assert start
  • [a-z]+ - match 1 or more alphabets
  • -? - match optional hyphen
  • \d* - match 0 or more digits
  • $ - assert end

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