moy-fp/src/List/foldr.js

A functional programming library.

import curry from '../Function/curry'

/**
 * ((b, a) -> a) -> a -> [b] -> a
 */
const foldr = curry(
  (fn, acc, list) => {
    let index = list.length - 1,
        result = acc
    while(index >= 0){
      result = fn(list[index], result)
      index --
    }
    return result
  }
)

export default foldr