@aimake/nanod/lib/table/createStore.js

## 设计模式 NANO DESIGN 是面向于企业级中台化应用的解决方案。服务于 ToB 和 ToE 类型的单页应用，应用于各产品中从而产出了一套设计及前端规范。

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = createStore;

function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }return target;
  };return _extends.apply(this, arguments);
}

function createStore(initialState) {
  var state = initialState;
  var listeners = [];

  function setState(partial) {
    state = _extends({}, state, partial);

    for (var i = 0; i < listeners.length; i++) {
      listeners[i]();
    }
  }

  function getState() {
    return state;
  }

  function subscribe(listener) {
    listeners.push(listener);
    return function unsubscribe() {
      var index = listeners.indexOf(listener);
      listeners.splice(index, 1);
    };
  }

  return {
    setState: setState,
    getState: getState,
    subscribe: subscribe
  };
}