Chrome的fetchAPI的body选项的postmanbody类型是什么？

Chrome的fetch API的body选项的postman body类型是“FormData”。可以使用以下代码示例：

const formData = new FormData();
formData.append("username", "John");
formData.append("password", "Doe");

fetch("https://example.com/login", {
  method: "POST",
  body: formData
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error(error))