Discussion on: Thenables: Await objects and cancel or defer your promises!

[Markus René Einicher]

When I use then to return “this” with its callback it starts an infinite loop of calling then. I don't get why:

class ApiRequest {

    constructor() {

    }

    then(ready) {
        console.log('then start');
        ready(this)
        console.log('then end');
    }

}

let apiRequest = new ApiRequest;
await apiRequest;

console:

then start
then end
then start
then end
then start
then end
then start
then end
then start
then end
then start
then end
then start
then end
then start
then end
then start
then end
...

With .then style it works perfectly:

let apiRequest = new ApiRequest;
apiRequest.then(apiResponse => {
    console.log('apiResponse', apiResponse)
});