import Home from "../views/Home.vue";

const routes = [
  {
    path: "/home",
    name: "Home",
    component: Home,
    children: [
      {
        path: "sub",
        component: () =>
          import(/* webpackChunkName: "sub" */ "../views/Sub.vue"),
      },
    ],
  },
];

export default routes;

<template>
  <div class="home">
    <input v-model="inputValue" />
    <h3>{{ inputValue }}</h3>
    <button @click="handleToSub">to sub</button>
    <router-view @reload="handleReload" />
  </div>
</template>

<script>
export default {
  name: "Home",
  data() {
    return {
      inputValue: "",
    };
  },
  methods: {
    handleToSub() {
      // 注意路由格式，是基于上一個路由/home下面的sub，不是獨立的/sub
      this.$router.push("/home/sub");
    },

    handleReload(val) {
      // 這里可以做一些重新獲取數(shù)據(jù)的操作，比如在詳情頁修改數(shù)據(jù)，返回后重新拉取列表
      console.log("reload", val);
    },
  },
  mounted() {
    // 子頁面返回，不會重新跑生命周期
    console.log("mounted");
  },
};
</script>

<style scoped>
.home {
  position: relative;
}
</style>

<template>
  <div class="sub">
    <h1>This is Sub page</h1>
  </div>
</template>

<script>
export default {
  beforeDestroy() {
    // 可以傳自定義參數(shù)，如果沒需要，也可以不做
    this.$emit("reload", 123);
  },
};
</script>

<style scoped>
.sub {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
}
</style>

import { Route } from "react-router-dom";

const Routes = () => {
  return (
    <>
      {/* 這里不能加exact，因為要先匹配父頁面再匹配子頁面 */}
      <Route path="/home" component={lazy(() => import("../views/Home"))} />
    </>
  );
};

export default Routes;

import React, { useEffect, useState } from "react";
import { Route, useHistory } from "react-router-dom";
import styled from "styled-components";
import Sub from "./Sub";

const HomeContainer = styled.div`
  position: relative;


const Home: React.FC = () => {
  const [inputValue, setInputValue] = useState("");
  const history = useHistory();

  const handleToSub = () => {
    history.push("/home/sub");
  };

  const handleReload = (val: number) => {
    console.log("reload", val);
  };

  useEffect(() => {
    console.log("mounted");
  }, []);

  return (
    <HomeContainer>
      <input
        value={inputValue}
        onChange={(e) => setInputValue(e.target.value)}
      />
      <h3>{inputValue}</h3>
      <button onClick={handleToSub}>to sub</button>
      <Route
        path="/home/sub"
        component={() => <Sub handleReload={handleReload} />}
      />
    </HomeContainer>
  );
};

export default Home;

import React from "react";
import styled from "styled-components";

const SubContainer = styled.div`
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;


type SubProps = {
  handleReload: (val: number) => void;
};

const Sub: React.FC<SubProps> = ({ handleReload }) => {
  useEffect(() => {
   return () => handleReload(123);
  }, []);
  
  return (
    <SubContainer>
      <h1>This is Sub page</h1>
    </SubContainer>
  );
};

export default Sub;