import * as resultJs from "https://deno.land/x/result_js@2.0.0/operators/logical.ts"; FunctionsfandReturns res if the result is Ok, otherwise returns the Err. fandThenCalls fn if the result is Ok, otherwise returns the Err. forReturns res if the result is Err, otherwise returns the Ok. forElseCalls fn if the result is Err, otherwise returns the Ok.