merge two arrays of keys and values to an object using underscore

Question

Given two arrays, one with keys, one with values:

keys = ['foo', 'bar', 'qux'] values = ['1', '2', '3'] 

How would you convert it to an object, by only using underscore.js methods?

{    foo: '1',     bar: '2',    qux: '3' } 

I'm not looking for a plain javascript answer (like this).

I'm asking this as a personal exercise. I thought underscore had a method that was doing exactly this, only to find out it doesn't, and that got me wondering if it could be done. I have an answer, but it involves quite a few operations. How would you do it?

Answer 1

I know you asked for Underscore.js solutions, but you don't need it for this. Here's a oneliner using ES7 object spread operator and dynamic keys.

keys.reduce((obj, k, i) => ({...obj, [k]: values[i] }), {})