map
import { map } from "https://github.gh-proxy.cn/raw.githubusercontent.com/baetheus/fun/main/promise.ts";Create a new Promise by mapping over the result of an existing Promise. This is effectively Promise.then, but narrowed to non-promise returning functions. If the mapping function returns a Promise then the type for this function will be incorrect, as there is no way to create a Promise<Promise>.
@example
import { wrap, map } from "./promise.ts";
import { pipe } from "./fn.ts";
const result = await pipe(
wrap(1),
map(n => n + 1),
); // 2
function map<A, I>(fai: (a: A) => I): (ua: Promise<A>) => Promise<I>;