FormData：在没有JSON.stringify的情况下分配对象

Question

I want send to server data in this format:

{"post"=>{"body"=>"hello", "title"=>"321", "username"=>"1"}

But If I use FormData in this way:

var data = new FormData();
undefined
var a = {username: "1", title: "1", body: "1"}
undefined
data.append( 'post', a );
undefined
data.get("post")
"[object Object]"

I will get this:

{"post"=>"[object Object]"}

How I can to send data in right format?

Answer 1

You are appending "a", but "a" is an object, specifically, a JSON object, which is why you see the {"post"=>"[object Object]"} . Use JSON.parse(a) first to build your string. See JSON parse