JQuery allow only two numbers after decimal point

Question

I found the following JQuery function here which prevents a user from entering anything that\'s not a number or a single decimal. The function works well but I\'d like to i

Answer 1

Numeric values With Decimal Point up to 2 decimal point validation. Dependency jQuery.

HTML -

<span>Float</span>
<input type="text" name="numeric" class='allownumericwithdecimal'>
<div>Numeric values only allowed  (With Decimal Point) </div>

JQuery Code -

Method 1-

    $(".allownumericwithdecimal").on("keypress keyup blur", function (event) {
     var patt = new RegExp(/[0-9]*[.]{1}[0-9]{2}/i);
     var matchedString = $(this).val().match(patt);
     if (matchedString) {
         $(this).val(matchedString);
     }
     if ((event.which != 46 || $(this).val().indexOf('.') != -1) && (event.which < 48 || event.which > 57)) {
         event.preventDefault();
     }
 });

Method 2 -

 $(".allownumericwithdecimal").on("keypress keyup blur", function (event) {
     var patt = new RegExp(/(?<=\.\d\d).+/i);
     $(this).val($(this).val().replace(patt, ''));

     if ((event.which != 46 || $(this).val().indexOf('.') != -1) && (event.which < 48 || event.which > 57)) {
         event.preventDefault();
     }
 });