action-reducer/dist/action-reducer.js

Type-safe ActionCreator and Reducer library

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
  typeof define === 'function' && define.amd ? define(['exports'], factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.ActionReducer = {}));
})(this, (function (exports) { 'use strict';

  let typeId = 0;
  const ActionReducer = (initState, prefix) => {
    const mutations = /* @__PURE__ */ Object.create(null);
    const createAction = (type, mutation) => {
      if (mutation === void 0) {
        mutation = type;
        type = `@@ActionReducer-${++typeId}`;
      }
      type = null != type.type ? type.type : prefix ? prefix + type : type;
      const actionCreator = (...payload) => ({ type, payload });
      actionCreator.type = type;
      mutations[type] = mutation;
      return actionCreator;
    };
    const reducer = (state = initState, action) => {
      const mutation = mutations[action.type];
      return mutation ? mutation(state, ...action.payload) : state;
    };
    return { createAction, reducer };
  };

  exports["default"] = ActionReducer;

  Object.defineProperty(exports, '__esModule', { value: true });

}));