Function isAsyncFunction

isAsyncFunction(value: unknown): value is (...args: any[]) => Promise<any>
Checks whether a value is an asynchronous function according to its string representation ("async" keyword).
Parameters
- value: unknown
Returns value is (...args: any[]) => Promise<any>
Example
```
isAsyncFunction(async () => {})         // true
isAsyncFunction(async function () {})   // true
isAsyncFunction(cb => new Promise(cb))  // false (missing keyword)
isAsyncFunction({ async() {} }.async)   // false (its name is "async")
```
Since
3.0.0-beta.1
- Defined in utils/public/checkers/is-async-function.ts:15