Response.ok

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

实验性: 这是一项实验性技术
在将其用于生产之前,请仔细检查浏览器兼容性表格

Response 接口的只读属性 ok 包含一个布尔值,表明响应是否成功(状态码在 200-299 范围内).

语法

var myOK = response.ok;

示例

In our Fetch Response example (see Fetch Response live) we create a new Request object using the Request() constructor, passing it a JPG path. We then fetch this request using fetch(), extract a blob from the response using Body.blob, create an object URL out of it using URL.createObjectURL, and display this in an <img>.

Note that at the top of the fetch() block we log the response ok value to the console.

js
var myImage = document.querySelector("img");

var myRequest = new Request("flowers.jpg");

fetch(myRequest).then(function (response) {
  console.log(response.ok); // returns true if the response returned successfully
  response.blob().then(function (myBlob) {
    var objectURL = URL.createObjectURL(myBlob);
    myImage.src = objectURL;
  });
});

规范

Specification
Fetch
# ref-for-dom-response-ok②

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
ok

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

参见