How To Restrict Entering A 9 Digit Number In Alpha Numeric Textbox

How to restrict user from entering a 9 digit number in alpha numeric textarea. the textarea can have alphabets. The textarea should allow all numbers except 9-digit numbers.

Solution 1:

What trigger do you use to validate the textbox? if is for submiting or a validate function, you can try

//regvalu can be ^[-+]?[1-9]\d*$(dont alow zero in from///or ^\d+$ for any digitvar regex = newRegExp(regVal)
if($('#textBox').length == 9  && regex.test($('#textBox').text())
 {
    alert('Your value is invalid');
 }

Solution 2:

$('#txtName').keyup( function() {
         var str = $(this).val();
         var digits = str.replace(/\D/g, "##");
         var splitdigits = digits.split("##");
       if (splitdigits.length > 0)
       {
         for(varIcount = 0; Icount < splitdigits.length; Icount++)
         { 
          if (splitdigits[Icount] != '' && splitdigits[Icount].match(/^\d+$/) && splitdigits[Icount].length == 9)
            {

                 alert('Invalid input'); 
                 returnfalse;
           }
        }
      }
     });

<scriptsrc="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><inputid="txtName"type="text" >

Use above code in script tag u can change "#txtName" and use your textarea id