lt-event-store

An event-based global state management tool for vue, react, mini-program, etc.

一个基于事件的全局状态管理工具，可以在 Vue、React、小程序等任何地方使用。

设计灵感

在项目中找到一个更加方便快捷的数据共享方案：

• 后续会完善文档和增加更多好用功能；
• 欢迎 star、issue、pull requests，会进行更多改变；

如何使用呢？

1、npm 安装依赖

npm install lt-event-store

2、事件总线（event-bus）

const { LtEventBus } = require("lt-event-store");

const eventBus = new LtEventBus();

const ltCallback1 = (...payload) => {
  console.log("ltCallback1:", payload);
};

const ltCallback2 = (...payload) => {
  console.log("ltCallback1:", payload);
};

const lileiCallback1 = (...payload) => {
  console.log("lileiCallback1:", payload);
};

eventBus.on("lt", ltCallback1);
eventBus.on("lt", ltCallback2);
eventBus.on("lilei", lileiCallback1);
eventBus.once("lt", (...payload) => {
  console.log("lt once:", payload);
});

setTimeout(() => {
  eventBus.emit("lt", "abc", "cba", "nba");
  eventBus.emit("lilei", "abc", "cba", "nba");
}, 1000);

setTimeout(() => {
  eventBus.off("lt", ltCallback1);
  eventBus.off("lilei", lileiCallback1);
}, 2000);

setTimeout(() => {
  eventBus.emit("lt");
  eventBus.emit("lilei");
}, 3000);

3、数据共享（event-store）

const { LtEventStore } = require("lt-event-store");
const axios = require("axios");

const eventStore = new LtEventStore({
  state: {
    name: "lt",
    friends: ["abc", "cba", "nba"],
    banners: [],
    recommends: [],
  },
  actions: {
    getHomeMultidata(ctx) {
      console.log(ctx);
      axios.get("http://123.207.32.32:8000/home/multidata").then((res) => {
        const banner = res.data.data.banner;
        const recommend = res.data.data.recommend;
        // 赋值
        ctx.banners = banner;
        ctx.recommends = recommend;
      });
    },
  },
});

// 数据监听
eventStore.onState("name", (value) => {
  console.log("监听name:", value);
});

eventStore.onState("friends", (value) => {
  console.log("监听friends:", value);
});

eventStore.onState("banners", (value) => {
  console.log("监听banners:", value);
});

eventStore.onState("recommends", (value) => {
  console.log("监听recommends", value);
});

// 数据变化
setTimeout(() => {
  eventStore.setState("name", "lilei");
  eventStore.setState("friends", ["kobe", "james"]);
}, 1000);

eventStore.dispatch("getHomeMultidata");