XMLHttpRequest.status

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

只读属性 XMLHttpRequest.status 返回了 XMLHttpRequest 响应中的数字状态码。status 的值是一个无符号短整型。在请求完成前,status 的值为 0。值得注意的是,如果 XMLHttpRequest 出错,浏览器返回的 status 也为 0。status 码是标准的 HTTP status codes。举个例子,status 200 代表一个成功的请求。如果服务器响应中没有明确指定 status 码,XMLHttpRequest.status 将会默认为 200

例子

js
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);

/**
 * 输出如下:
 *
 * UNSENT(未发送)0
 * OPENED(已打开)0
 * LOADING(载入中)200
 * DONE(完成)200
 */

规范

Specification
XMLHttpRequest
# the-status-attribute

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
status

Legend

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Full support
Full support

其他相关资料