javascript - 如何使 Jquery 表单验证功能在其他功能之前执行/触发？

Question

我使用 Jquery 表单验证来验证表单输入数据。有一个

确认

检查

提交此表格。.

代码是：

<script type="text/javascript">
function Confirmation(){
    var answer = confirm("Do you really want to withdraw this amount of money from your account?")
    if (answer){
        return true;
    }
    else{
        return false;
    }

}
$(document).ready(function() { 
$("#withdraw").validate({ 
        rules: { 
         amount: {
            required: true,
             digits:true


        } ,
        bank:{
            required:true,

        },
        cardnumber1: {
            required: true,
             minlength:8

        },
       cardnumber2:{
          required:true,
          equalTo: "#cardnumber1"
         },
          holder:{
          required:true,
        }
  }
})
}); 
</script>

我想在Jquery表单验证之前执行Confirmation()，怎么做？

Answer 1

我查看了文档，有一个名为 submitHandler 的选项，我认为它允许您在提交表单之前但在验证发生之后添加确认对话框。尝试这个...

<script type="text/javascript">
$(document).ready(function() { 
  $("#withdraw").validate({ 
    submitHandler : function(form) {
      if (confirm("Do you really want to withdraw this amount of money from your account?")) {
        form.submit();
      }
    },
    rules: { 
      amount: {
        required: true,
        digits:true
      },
      bank:{
        required:true,
      },
      cardnumber1: {
        required: true,
        minlength:8
      },
      cardnumber2:{
        required:true,
        equalTo: "#cardnumber1"
      },
      holder:{
        required:true,
      }
    }
  })
}); 
</script>

Answer 2

史蒂文，

您需要onsubmit从表单中删除处理程序并将其添加submitHandler到验证插件...

$("#withdraw").validate({
        rules: {
           amount: {
            required: true,
             digits:true
                   }
             // .. other rules here
               },
        submitHandler: function(form){
         if( Confirmation() )
             form.submit();
  }
})