moy-fp/src/List/foldl.js

A functional programming library.

import curry from '../Function/curry'

/**
 * ((a, b) -> a) -> a -> [b] -> a
 */
const foldl = curry(
  (fn, acc, list) => {
    let result = acc
    for(let item of list){
      result = fn(result, item)
    }
    return result
  }
)

export default foldl