Function waitFor

waitFor<T>(cb, ms?): AbortablePromise<Exclude<T, false | 0 | "" | null | undefined>>
Polls the callback until it returns a truthy value or rejects.
Type Parameters
- T
  The value returned by the callback.
Parameters
- cb: ((signal, index) => Awaitable<T>)
  The callback that is periodically invoked.
  - - (signal, index): Awaitable<T>
    - Parameters
      signal: AbortSignal
      index: number
      Returns Awaitable<T>
- Optional ms: number | ((value, index) => number)
  The number of milliseconds between the settlement of the last promise returned by the callback and the next invocation. Or a callback that receives the latest value and returns the delay. If omitted then delay is 0.
Returns AbortablePromise<Exclude<T, false | 0 | "" | null | undefined>>
The truthy value.