在一个上,它完美运行;在另一个上,它崩溃,令用户感到沮丧。 要理解浏览器实现的差异如何会导致开发者额外的工作量,让我们来看一下实现 JavaScript Ajax 调用。在 2006 年,W3C(万维网联盟)的标准并没有涵盖到XMLHttpRequest对象,这个对象是所有 Ajax 请求的核心。微软在 1999 年就用 Internet Explorer 5 实现了...
发起一个ajax POST请求,并在请求主体中提交请求数据,如果服务器返回成功响应消息,调用callback,在callback方法中处理响应数据,使用方法三种: ①. $.post(url,data,callback); ②. $.post(url,'id=1&name=tom',callback); ③. $.post(url,{id:1,name:tom},callback); (3). $.getJSON(url,data,cal...
in the creation of the request. When an HTTP error occurs, the fourth argument (thrownError) receives the textual portion of the HTTP status, such as "Not Found" or "Internal Server Error." For example, to restrict the error callback to only handling events dealing with a particular URL:...
};//Attach a bunch of functions for handling common AJAX eventsjQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ],function( i, type ){ jQuery.fn[ type ]=function( fn ){returnthis.on( type, fn ); }; }); jQuery.extend({//Counter...
It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. If you're new to jQuery, we recommend that you check out the jQuery Learning Center....
bruce, thanks for your reply. So is there no way to force the ajax call to allow the error handling or send back an error code and allow the default logic to take over? Like I mentioned at the beginning, I already have the this "working" and passing the info off to my out of ...
ability of$.ajax(), and you don't care about handling errors, the Ajax convenience functions provided by jQuery can be useful, terse ways to accomplish Ajax requests. These methods are just "wrappers" around the core$.ajax()method, and simply pre-set some of the options on the$.ajax()...
$.ajax({ statusCode: { 404:function(){ alert("page not found"); } } }); If the request is successful, the status code functions take the same parameters as the success callback; if it results in an error (including 3xx redirect), they take the same parameters as theerrorcallback....
}) xhr.fail(function(xhr, errorType, error){ ... }) xhr.always(function(){ ... }) xhr.then(function(){ ... }) These methods supersede the success, error, and complete callback options. Ajax events These events are fired during the lifecycle of an Ajax request performed with the ...
6 @@ function ajaxReturn($msg,$status = -1,$data = []){ $result['data'] = $data; } return $result; -} \ No newline at end of file +} + +error_reporting(E_ERROR | E_WARNING | E_PARSE); \ No newline at end of file diff --git a/application/portal/controller/Index.php...