fp-ts-std/dist/esm/Alternative.js

The missing pseudo-standard library for fp-ts.

import * as A from "fp-ts/Array";
import { pipe } from "fp-ts/function";
export function pureIf(F) {
    return x => y => (x ? F.of(y()) : F.zero());
}
export function altAllBy(F) {
    return fs => x => pipe(fs, A.reduce(F.zero(), (m, f) => F.alt(m, () => f(x))));
}