Request.formData()

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 formData() 方法读取请求体并将其作为 promise 返回,该 promise 将兑现一个 FormData 对象。

语法

js
formData()

参数

无。

返回值

一个 Promise,会兑现一个 FormData 对象。

示例

js
const formData = new FormData();
const fileField = document.querySelector('input[type="file"]');

formData.append("username", "abc123");
formData.append("avatar", fileField.files[0]);

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

request.formData().then(function (data) {
  // do something with the formdata sent in the request
});

规范

Specification
Fetch
# ref-for-dom-body-formdata①

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
formData

Legend

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Full support
Full support
Partial support
Partial support
Has more compatibility info.

参见