XMLHttpRequest.status
XMLHttpRequest.status 屬性根據 XMLHttpRequest 的回應傳回數值化的狀況編碼。狀況編碼為一正短整數(unsigned short)。
Before the request is complete, the value of status
will be 0
. It is worth noting that browsers report a status of 0 in case of XMLHttpRequest errors too.
The status codes returned are the standard HTTP status codes. For example, status
200
denotes a successful request. If the server response doesn't explicitly specify a status code, XMLHttpRequest.status
will assume the default value of 200
.
Example
var xhr = new XMLHttpRequest();
console.log('UNSENT', xhr.status);
xhr.open('GET', '/server', true);
console.log('OPENED', xhr.status);
xhr.onprogress = function () {
console.log('LOADING', xhr.status);
};
xhr.onload = function () {
console.log('DONE', xhr.status);
};
xhr.send(null);
/**
* Outputs the following:
*
* UNSENT 0
* OPENED 0
* LOADING 200
* DONE 200
*/
Specifications
Specification |
---|
XMLHttpRequest Standard # the-status-attribute |
Browser compatibility
BCD tables only load in the browser
See also
- List of HTTP response codes