How to allow only numeric (0-9) in HTML inputbox using jQuery?

How to allow only numeric (0-9) in HTML inputbox using jQuery?

<input type="text" id="topperstest" name="topperstest" placeholder="Enter Your number here">

here is the code that help you and allow  you to enter only numeric value to the textfield.

jQuery Allow Only Numbers

$(function () {

    $('#topperstest').keydown(function (e) {

   if (e.shiftKey || e.ctrlKey || e.altKey) {

    e.preventDefault();

    } else {

    var key = e.keyCode;

    if (!((key == 8) || (key == 46) || (key >= 35 && key <= 40) || (key >= 48 && key <= 57) || (key >= 96 && key <= 105))) {

    e.preventDefault();

    }   

    }

    });

    });