const SCRIPTS = require("./scripts.js"); function reduce(array, combine, start) { let current = start; for(let element of array){ current = combine(current, element); } return current } console.log(reduce([1,2,3,4], (a,b) => a +b, 0)); console.log([1,2,3,4].reduce((a,b) => a +b)); function characterCount(script) { return script.ranges.reduce((count, [from, to]) => { return count + (to - from); }, 0); } console.log(SCRIPTS.reduce((a,b) => { return characterCount(a) < characterCount(b) ? b : a; }));