非父子组件之间的传值(bus/总线/发布订阅模式/观察者模式)

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>非父子组件之间的传值(bus/总线/发布订阅模式/观察者模式)</title>
</head>
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script>

<body>
    <div id="app">
        <child content='Dell'></child>
        <child content='Lee'></child>
    </div>
    <script>
    Vue.prototype.bus = new Vue();


    Vue.component("child", {
        data: function() {
            return {
                selfContent: this.content,
            }
        },
        props: {
            content: String
        },
        template: '<div @click="handleClick">{{selfContent}}</div>',
        methods: {
            handleClick: function() {
                this.bus.$emit('change', this.selfContent);
                // alert(this.content)
            }
        },
        mounted: function() {
            let this_ = this;
            this.bus.$on('change', function(msg) {
                // alert(msg)
                this_.selfContent = msg;
            })
        }
    });

    var vm = new Vue({
        el: '#app'
    })
    </script>
</body>

</html>

非父子组件之间的传值(bus/总线/发布订阅模式/观察者模式)

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