javascript 未捕获的类型错误：当我尝试将数据发送到 url 时，无法读取未定义的属性“ajax”
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Uncaught TypeError: Cannot read property 'ajax' of undefined When I'm trying to send data to url
提问by
I have created a form to get feedback from user, I'm simply trying to send form data to url, but I'm getting this error:
我创建了一个表单来获取用户的反馈，我只是想将表单数据发送到 url，但我收到此错误：
Uncaught TypeError: Cannot read property 'ajax' of undefined
未捕获的类型错误：无法读取未定义的属性“ajax”
function sendData(){
$.ajax({
url: "www.yashkjhsah.php",
type: "POST",
async: true,
data: $(".contacts_form").serialize(),
dataType: "html",
success: function(data)
{
alert(data);
if(data!="Error in Insert Query!")
{
alert("Thank you for Enquiry we will send answer in your Mail.");
}
else
{
alert("Error while saving the data");
}
}
});
}
回答by TGrif
The error message says that jQuery is not define. You must include jQuery before doing anything with $.ajax
错误消息说 jQuery 未定义。在使用 $.ajax 执行任何操作之前，您必须包含 jQuery
Put this line in the html page before your script :
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
将此行放在脚本之前的 html 页面中：
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
回答by gassio
I had the same problem and I solved it, by changing the dollar symbol $ with jQuery.
我遇到了同样的问题，我通过使用jQuery更改美元符号 $ 来解决它。
jQuery.ajax({
type: "POST",
url: "...",
data: jQuery('myForm').serialize(),
success: function(msg) {
console.log('success!');
},
});回答by Manjar
That means that jquery has not been loaded.
这意味着尚未加载 jquery。
Make sure that you have the script in your html, and also wrap the call to this function sendDatainside a
确保您的 html 中有脚本，并将对此函数的调用包装sendData在一个
$(document).ready(function(){
//do stuff
})
