title: How to check special characters in a string using Yup?
body: <p>For Example, Bank account number cannot have special characters and I would like to validate the user input using <code>Yup</code> and show error in case of special characters like @,#,$ etc and emoji's.</p>
  
  <p>Main intention here is to know the use of <code>regex</code> with <code>Yup</code>.</p>
  
  <p>Note: I can use <code>Yup.oneOf</code> and restrict the user just to enter the integers.</p>