Sort an array of objects based on another array of ids using RAMDA

RamdaSortArrayOfObjectsBasedOnAnotherArrayOfIds.js

/*
Reference https://stackoverflow.com/a/35559392
Ramda is needed for this sort to work! 
*/

// IMPORTS
import * as R from 'ramda';

// BACKGROUND
const a = [2,3,1,4];
const b = [{id: 1}, {id: 2}, {id: 3}, {id: 4}];

// SOLUTION #1
// match id of object to required index and insert
var sortInsert = function (acc, cur) {
  var toIdx = R.indexOf(cur.id, a);
  acc[toIdx] = cur;
  return acc;
};

// point-free sort function created
var sort = R.reduce(sortInsert, []);

// execute it now, or later as required
sort(b);
// [ { id: 2 }, { id: 3 }, { id: 1 }, { id: 4 } ]


// SOLUTION #2

var groupById = R.groupBy(R.prop('id'), b);

var sort = R.map(function (id) {
    return groupById[id][0];
});

sort(a);
// [ { id: 2 }, { id: 3 }, { id: 1 }, { id: 4 } ]

// SOLUTION #3
R.sortBy(R.pipe(R.prop('id'), R.indexOf(R.__, a)))(b);
// [ { id: 2 }, { id: 3 }, { id: 1 }, { id: 4 } ]