Request.blob()

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.

Request 接口的 blob() 方法读取请求体并将其作为 promise 返回，该 promise 将兑现一个 Blob。

语法

js
blob()

参数

无。

返回值

一个 promise，会兑现一个 Blob。

示例

js
const obj = { hello: "world" };
const myBlob = new Blob([JSON.stringify(obj, null, 2)], {
  type: "application/json",
});

const request = new Request("/myEndpoint", {
  method: "POST",
  body: myBlob,
});

request.blob().then(function (myBlob) {
  // do something with the blob sent in the request
});

规范

Specification
Fetch
# ref-for-dom-body-blob①

浏览器兼容性

参见