lodash deinterleave

deinterleave.js

const deinterleave = function(doc) { // `doc` is an array like this `['fname','kyle','lname','davis']`
  return  _(doc)                     // Start the lodash chain with `doc`
    .chunk(2)                        // `chunk` to convert `doc` to `[['fname','kyle'],['lname','davis']]`
    .fromPairs()                     // `fromPairs` converts paired arrays into objects `{ fname : 'kyle', lname : 'davis }`
    .value();                        // Stop the chain and return it back
}