lists-reduce
Reduce values in lists to single values, like Array.reduce().
const reduce = require('lists-reduce');
// reduce(<lists>, <reduce function>, [initial value])
a = ['et', 'tu', 'brute'];
reduce([a.keys(), a], (acc, v) => acc+v);
// 'ettubrute'
a = {w1: 'then', w2: 'fall', w3: 'caesar'};
reduce([Object.keys(a), Object.values(a)], (acc, v, i, lst) => acc+v, ':');
// ':thenfallcaesar'