remap objects

remap.js

const map = mapper => arr => arr.map(mapper);
const reduce = reducer = arr => arr.reduce(reducer);
const path = pathSeg => obj =>
  pathSeg.reduce((acc, segment) => acc && acc[segment], obj);

/* --------------vy::remap---------------- */

const remap = paths => obj =>
  paths.reduce((acc, [key, seg]) => {
    acc[key] = path(seg)(obj);
    return acc; }, {});

/* --------------------------------------- */

const arr = [
  { name: 'a', irrelevant: {} },
  { name: 'b', irrelevant: {} }
];

const paths = [
  [ 'name', [ 'name' ] ],
];

console.log(map(path(['name']))(arr));
console.log(map(remap(paths))(arr));