Remove all empty values from an object

pruneObject.ts

import flat, { unflatten } from "flat";
import { reduceRight } from "lodash";
import {
    pipe,
    reject,
    isNil,
    isEqual,
    get,
    fromPairs,
    entries,
    last,
} from "lodash/fp";

const object = {
    a: {
        b: {
            arr: [],
            c: {
                d: null,
                e: 1,
                f: false,
                g: undefined,
                h: 0,
            },
        },
    },
};

const or = (...fns: any[]) => (args: any) =>
    reduceRight(
        fns,
        (truth, f) => {
            return truth || f(args);
        },
        false
    );

const isEmptyArray = pipe(get("length"), isEqual(0));

const pruneObject = pipe(
    flat,
    entries,
    reject(pipe(last, or(isNil, isEmptyArray))),
    fromPairs,
    unflatten
);

console.log(pruneObject(object));