isAsync()function
isAsync(value: PromiseLike<T> | T): value is PromiseLike<T>
| Param | Type | |
|---|---|---|
value | PromiseLike<T>T | The value to test. required |
| Return | |
|---|---|
value is PromiseLike<T> | true if value is a PromiseLike, narrowing its type. |
Is a value an asynchronous value implementing a then() function.