Question

I have a class that initiate this function…but I need to modify it’s regex.

I would like to exclude all alphabetic characters and any numbers beginning with 0[zero].

$('.numeric').keyup(function () {
    $(this).toggleClass('field-error', /(0|00|000)$/.test(this.value));
}); 

Answer 1

Jquery Code:

$(document).ready( function(){                          
   $('#test_regex').click( function(){
      regex= /^[a-zA-Z0]+$/;
      str= $('#reginput').val();
      result= regex.test(str);
      if( result ){
        alert("Value contains alphabet or begin with zero number");
      }else{
        alert("It's the correct value");
      }
  });
});

HTML Code:

<input type="text" id="reginput"/>
<button id="test_regex">Check Value</button>

Maybe it’s what you want…