Tests for off-thread promises

* @brief Wrapper to remove the reference of the timer after the job finishes */

[MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/toJSON)

Returns a string containing a query string suitable for use in a URL. Does not include the question mark.

* When called, the active `Timeout` object will not require the event-loop to remain active. * If there is no other activity keeping the event-lo

* Returns the associated XMLHttpRequestUpload object. * It can be used to gather transmission information when data is transferred to a server.

* A boolean value that indicates whether or not cross-site `Access-Control` requests should be made using credentials such as cookies, authorization h

clear the moved-from object

clear the moved-from object