yax/es/util.js

Yet another store using redux. (Inspired by vuex and dva)

import _extends from "@babel/runtime/helpers/extends";
import { combineReducers } from 'redux';
export function forEachValue(obj, fn) {
  Object.keys(obj).forEach(function (key) {
    return fn(obj[key], key);
  });
}
export function isObject(obj) {
  return obj !== null && typeof obj === 'object';
}
export function isPromise(val) {
  return val && typeof val.then === 'function';
}
export function assert(condition, msg) {
  if (!condition) throw new Error("[yax] " + msg);
}
export function composeReducers() {
  for (var _len = arguments.length, reducers = new Array(_len), _key = 0; _key < _len; _key++) {
    reducers[_key] = arguments[_key];
  }

  return function (state, action) {
    return reducers.reduce(function (p, r) {
      return r(p, action);
    }, state);
  };
}
export function mapReducers(reducers) {
  var combined = combineReducers(reducers);
  return function (state, action) {
    var reducer = function reducer(p, k) {
      var _extends2;

      return _extends({}, p, (_extends2 = {}, _extends2[k] = state[k], _extends2));
    };

    var combinedState = Object.keys(reducers).reduce(reducer, {});
    return Object.assign({}, state, combined(combinedState, action));
  };
}
export function getNestedState(state, path) {
  return path.length ? path.reduce(function (state, key) {
    return state[key];
  }, state) : state;
}