Response.ok

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;

值

Boolean (en-US).

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 (en-US), 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 Standard
# ref-for-dom-response-ok②

浏览器兼容性

BCD tables only load in the browser

参见