jQuery的AJAX调用时间太长或东西 [英] jquery ajax call taking too long or something

问题描述

我有，我要确保PayPal的电子邮件地址是有效的之前，我提交表单。所以，我想提出一个jQuery的提出像这样的电话

I have a form that I want to ensure the paypal email address is valid before I submit. So i am making a jquery submit call like this

        $('#new_user').submit(function(){
            $.ajax({
                type: 'post',
                url: "/validate_paypal",            
                dataType: 'json',
          data: {email : $('#user_paypal_email').val()},
              success: function( data ) {
                if (data.response["valid"] == false){
                        $('#user_paypal_email').closest('.field').addClass('fieldWithErrors');
                        $('#user_paypal_email').append('<span style="color:#E77776;">This is not a valid email address</span>');
                        return false;
               }else{
                        return true;
                 }
                }
        });

但问题是，这一呼吁多数民众赞成在第二和页面已经刷新AJAX完成之前....如果我把返回的错误在通话结束时，我可以看到我的JSON是正确的，但由于某种原因，这样我现在不会结束......如何纠正任何想法

but the problem is this call thats a second and the page already refreshes before the ajax is complete....if I put the return false at the end of the call I can see my json is correct but for some reason the way I have it now wont finish...any ideas on how to correct this

推荐答案

就在（）立即停止使用，preventDefault当提交事件。然后等待来自PayPal的反应，然后调用提交（）的形式。

Just use preventDefault() immediately when the submit event is fired. Then wait for the response from paypal and then call submit() on the form.

$('#new_user').submit(function(e){
   e.preventDefault();
   var form = $(this);  //save reference to form
            $.ajax({
                type: 'post',
                url: "/validate_paypal",            
                dataType: 'json',
                data: {email : $('#user_paypal_email').val()},
                success: function( data ) {
                  if (data.response["valid"] == false){
                        $('#user_paypal_email').closest('.field').addClass('fieldWithErrors');
                        $('#user_paypal_email').append('<span style="color:#E77776;">This is not a valid email address</span>');
                        return false;
               }else{
                        form.unbind('submit');  //remove binding
                        form.submit(); //submit form
                 }
                }
        });

这篇关于jQuery的AJAX调用时间太长或东西的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！