ajax ajaxSend() method
Translation results：
Ajax
English [ˈeɪˌdʒæks] American [ˈeˌdʒæks]
n. The full name is "Asynchronous JavaScript and XML" (asynchronous JavaScript and XML); refers to a A web development technology for creating interactive web applications. ; Ajax copper-tin-lead bearing alloy, Yajis explosive
send
UK[send] US[sɛnd]
vt.Send ; dispatch; cause to make (a certain reaction); cause to enter (a certain state)
vt.& vi. Send by radio waves, send out information
vi. Dispatch, send out, send people
adj.[only used as an attributive]
used for sendingajax ajaxSend() methodsyntax
Function: ajaxSend() method executes the function when the AJAX request starts. It is an Ajax event.
Syntax: .ajaxSend([function(event,xhr,options)])
##Parameters:
| Description | |
| Required. Specifies that the function should be executed when the request is started. Additional parameters: event - contains the event object xhr - contains the XMLHttpRequest object options - contains the options used in the AJAX request. |
Description: The XMLHttpRequest object and settings are passed as parameters to the callback function.
ajax ajaxSend() methodexample
<html>
<head>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("div").ajaxSend(function(e,xhr,opt){
$(this).html("正在请求：" + opt.url);
});
$("button").click(function(){
$("h2").text("文本已经改变");
alert("请求成功");
});
});
</script>
</head>
<body>
<div id="txt"><h2>通过 AJAX 改变文本</h2></div>
<button>改变内容</button>
</body>
</html>Click the "Run instance" button to view the online instance