FormData.delete()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2018年10月.
备注： 此特性在 Web Worker 中可用。
FormData 接口的 delete() 方法会从 FormData 对象中删除指定键，即 key，和它对应的值，即 value。