​

$('input').on('keypress', function (e) {

  var thisVal = $(this).val();

  var leng = thisVal.length;

​

  if (window.event) {

    code = e.keyCode;

  }else {

    code = e.which;

  };

​

  var allowedCharacters = [49,50,51,52,53,54,55,56,57,48,45];

  var isValidInput = false;

  for (var i = allowedCharacters.length - 1; i >= 0; i--) {

    if(allowedCharacters[i] == code){

      isValidInput = true;

    } 

  };

​

  if(isValidInput === false ||/* Can only input 1,2,3,4,5,6,7,8,9 or - */

    (code == 45 && (leng < 2 || leng > 5 || leng == 3 || leng == 4)) ||

    ((leng == 2 || leng == 5) && code !== 45) || /* only can hit a - for 3rd pos. */

    leng == 10 ) /* only want 10 characters "12-45-7890" */

    {

​

    event.preventDefault();

    return;

  }

​

});

​

​

$('input').on('keyup',function(e){

  var thisVal = $(this).val();

  var leng = thisVal.length;

  var reg = new RegExp(/^(((0[13578]|1[02])\-(0[1-9]|[12]\d|3[01])\-((19|[2-9]\d)\d{2}))|((0[13456789]|1[012])\-(0[1-9]|[12]\d|30)\-((19|[2-9]\d)\d{2}))|(02\-(0[1-9]|1\d|2[0-8])\-((19|[2-9]\d)\d{2}))|(02\-29\-((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$/g);

  if(leng == 10){

    if(reg.test(thisVal)){

      console.log('Valid Date');

    }else {

      event.preventDefault();

      return;

    } 

  }

});

​

​