Prevent -ve number

by Pralhad Sonar

HTML

<input type="number" min="0"/>

JavaScript

$(document).ready(function () {    
    $('input').keyup(function() {
        var $th = $(this);
        $th.val( $th.val().replace(/[-]/g, function(str) { 
            //alert('You typed " ' + str + ' ".\n\nPlease use only letters and numbers.'); 
            return ''; 
        } ) );
    });
});