simple fp

simplefp.js

export const identity = (data) => () => data;
export const partial = (fn, ...defaults) => (...args) => fn(...defaults, ...args);
export const partialFlip = (fn, ...defaults) => (...args) => fn(...args, ...defaults);
export const map = (fn) => (data) => Array.prototype.map.bind(data)(fn);
export const filter = (fn) => (data) => Array.prototype.filter.bind(data)(fn);
export const reduce = (fn, initial) => (data) => Array.prototype.reduce.bind(data)(fn, initial);
export const compose = (...fns) => (data) => reduce((result, next) => next(result), data)(fns);
export const composeFlip = (...fns) => compose(...fns.reverse());
export const compoesArray = (args) => compose(...args)
export const compoesArrayFlip = (args) => composeFlip(...args)
export const get = (query, DEFAULT) => (current) => {
  const keys = query.trim().split('.');
  for (let i = 0; i < keys.length; i++) {
    try {
      const next = current[keys[i]];
      if (next) {
        current = next;
      } else {
        return DEFAULT;
      }
    } catch (e) {
      return DEFAULT;
    }
  }
  return current;
};