type type Result = "pass" | "fail"Result = "pass" | "fail"

const const hello: "OK"heconst hello: "OK"llo = "OK"

const const world: "OK"worlconst world: "OK"d = "OK"

var console: Consoleconsole.Console.log(...data: any[]): void
[MDN Reference](https://developer.mozilla.org/docs/Web/API/console/log)log("OK")