first
import { first } from "https://github.gh-proxy.cn/raw.githubusercontent.com/baetheus/fun/main/pair.ts";A curried form of the pair constructor, starting with the first value of a pair.
@example
import * as P from "./pair.ts";
import { pipe } from "./fn.ts";
const result = pipe(
37,
P.first("Brandon"),
P.mapSecond(n => n + 1),
); // ["Brandon", 38]