jpalala

var Person = (function () {
    function Person(name) {
        this.name = name;
    }
    return Person;
})();
function greeter(person) {
    return "hallo " + person.name;
}
var person = new Person("bert");

rohansen

As i had a hard time finding anything in the mailchimp documentation, i thought it might help a lost soul to put this info here:
If you cannot find your marketing_permission_id of your mailchimp list (eg. for GDPR compliance), you can do a signup request (maybe others too), 
using the API, and it will return its data, including the marketing_permissions array containing the unique id for the opt-in.
POST:
{
  "email_address": "[email protected]",
  "status": "subscribed",
  "status_if_new": "subscribed",
  "merge_fields": {
    "FNAME": "John",