function types.isAsyncFunction
Usage in Deno
import { types } from "node:util";
isAsyncFunction(object: unknown): boolean
Returns true if the value is an async function.
This only reports back what the JavaScript engine is seeing;
in particular, the return value may not match the original source code if
a transpilation tool was used.
util.types.isAsyncFunction(function foo() {}); // Returns false
util.types.isAsyncFunction(async function foo() {}); // Returns true
boolean