How to do phone number validation using pure JavaSript (BY) + 375YYXXXXXXX?

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  How to check a phone number for validity? Those. we issue the message "number is correct" or "not correct" Number format + 375YYXXXXXXX. Brackets and dashes can be ignored.

  JavaScript Anonymous, Mar 3, 2019

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2 Answers
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  https://developer.mozilla.org/en/docs/Web / HTML / Ele ...

  Anonymous

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  if( /^\+375\d{9}$/.test(phoneNumber) ) alert('Номер верный')
  
  else alert('Номер не верный')

  Anonymous

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