FormData and Django: How to pass empty array

I have email_list field in my form

If there are no emails entered as Json payload i can send it as:

{
 email_list: []
}

Where as with FormData how to send it.

I am thinking something like this

if (data["email_list"].length === 0) {
    formData.append("email_list", []);
}
data["email_list"].forEach((item) => {
    formData.append("email_list", item);
});

Am i doing the right way

I checked the data i recieved in the django backend

print(request.POST.getlist('email_list'))

it prints

[""]

i want it to be

[]

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