General object transformation pattern.

object-functions.js

const xxx =
    prK =>
    prV =>
    mapK =>
    mapV =>
    obj => Object.entries(obj).reduce(
        (obj, [key, value]) =>
            ({ 
                ...obj,
                ...(prK(key) && prV(value) ? {[mapK(key)]: mapV(value)} : {})
            })
        , {});

const data = {a: 1, b: 2, c: 'jon', d: 'jane'};

const isNum = x => Number.isInteger(x);
const alwaysTrue = x => true;
const identity = x => x;
const toUpper = x => x.toUpperCase();
const timesTwo = x => x * 2;
const includes = xs => x => xs.includes(x);

xxx(alwaysTrue)(alwaysTrue)(identity)(identity)(data);

xxx(includes(['a', 'b']))(alwaysTrue)(toUpper)(timesTwo)(data);

xxx(alwaysTrue)(isNum)(identity)(identity)(data);