allowing input only for float number & Number

on

allowing input only for float number & Number 

$('input.float').on('input', function() {
  this.value = this.value.replace(/[^0-9.]/g, '').replace(/(\..*?)\..*/g, '$1');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
<input type="text" class="float" />
Another, 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/caret/1.0.0/jquery.caret.min.js"></script>
<input type="text" class="filterme">
$('.filterme').keypress(function(eve) {
  if ((eve.which != 46 || $(this).val().indexOf('.') != -1) && (eve.which < 48 || eve.which > 57) || (eve.which == 46 && $(this).caret().start == 0)) {
    eve.preventDefault();
  }

  // this part is when left part of number is deleted and leaves a . in the leftmost position. For example, 33.25, then 33 is deleted
  $('.filterme').keyup(function(eve) {
    if ($(this).val().indexOf('.') == 0) {
      $(this).val($(this).val().substring(1));
    }
  });
});

Comments

Post a Comment