Promise.withResolvers()

The Promise.withResolvers() static method returns an object containing a new Promise object and two functions to resolve or reject it, corresponding to the two parameters passed to the executor of the Promise() constructor.

Promise.withResolvers() is exactly equivalent to the following code:

Except that it is more concise and does not require the use of let.

The key difference when using Promise.withResolvers() is that the resolution and rejection functions now live in the same scope as the promise itself, instead of being created and used once within the executor. This may enable some more advanced use cases, such as when reusing them for recurring events, particularly with streams and queues. This also generally results in less nesting than wrapping a lot of logic within the executor.

Syntax example: Promise.withResolvers()