fnes_3_reduce_2.js

const info = {
  title: "Function",
  list: new Map([
    ['map', 'Functor f => (a -> b) - f a -> f b'],
    ['reduce', 'Collection c => ((a, b) -> b) -> b -> c a -> a']
  ])
};

log(
  reduce(
    (a, [k, v]) => `${a}\n - ${k} :: ${v}`,
    info.title,
    info.list.entries())
);
// 결과
// Function
//  - map :: Functor f => (a -> b) - f a -> f b
//  - reduce :: Collection c => ((a, b) -> b) -> b -> c a -> a