Jquery is an example of of pure numeric captcha that prohibits characters other than Numbers
- 2020-03-30 02:36:31
- OfStack
When the pure digital verification code is used, the following is sorted out:
$('#mobile-vcode').unbind();
$("#mobile-vcode").bind("keyup change",function () {
$(this).val($(this).val().replace(/D/g,''));
if($(this).val().length==4){
}
});