How to regex match entire string instead of a single character

Question

I am trying to implement \"alpha\" validation on Arabic alphabet characters input, using the JavaScript regex /[\\u0600-\\u06FF]/ as instructed in this post. I want

Answer 1

You can explicitly allow some keys e-g: numpad, backspace and space, please check the code snippet below:

function restrictInputOtherThanArabic($field)
{
  // Arabic characters fall in the Unicode range 0600 - 06FF
  var arabicCharUnicodeRange = /[\u0600-\u06FF]/;

  $field.bind("keypress", function(event)
  {
    var key = event.which;

    // 0 = numpad
    // 8 = backspace
    // 32 = space
    if (key==8 || key==0 || key === 32)
    {
      return true;
    }

    var str = String.fromCharCode(key);
    if ( arabicCharUnicodeRange.test(str) )
    {
      return true;
    }

    return false;
  });
}

// call this function on a field
restrictInputOtherThanArabic($('#firstnameAr'));