Request.formData()
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
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
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 |