function types.isGeneratorFunction
Usage in Deno
import { types } from "node:util";
isGeneratorFunction(object: unknown): object is GeneratorFunction
Returns true if the value is a generator 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.isGeneratorFunction(function foo() {}); // Returns false
util.types.isGeneratorFunction(function* foo() {}); // Returns true
object is GeneratorFunction