Convert JS object to FormData

objectToFormData.js

function objectToFormData(object){
    const formData = new FormData();
    for (let [key, value] of Object.entries(object)) {
        if (Array.isArray(value)) {
            value.forEach((item) => {
                formData.append(`${key}[]`, item);
            });
        } else if (typeof value === 'object') {
            for (let [subKey, subValue] of Object.entries(value)) {
                formData.append(`${key}[${subKey}]`, subValue)
            }
        } else {
            formData.append(key, value);
        }
    }
    return formData;
}