Capitalize First Letter of Name Input Field in Fluent Forms

CapFirstLetter.js

/*
* Add this js snippet in Form's JS box
*/

function capitalizeFLetter() { 
  var $input = $form.find('.ff-name-field-wrapper').find('input');
  $input.on('blur', function() {
     var string = $(this).val();
     if(string) {
        string = string[0].toUpperCase() + string.slice(1);
        $(this).val(string);
     }
  });
}

capitalizeFLetter();