<!DOCTYPE html> <html><head> <meta charset="utf-8" /> <title>vuejs生命周期</title> <script src="js/vuejs-2.5.16.js"></script> </head> <body> <div id="app"> {{message}} </div> </body> <script> var vm = new Vue({ el: "#app", data: { message: 'hello world' }, beforeCreate: function() { console.log(this); showData('创建vue实例前', this); }, created: function() { showData('创建vue实例后', this); }, beforeMount: function() { showData('挂载到dom前', this); }, mounted: function() { showData('挂载到dom后', this); }, beforeUpdate: function() { showData('数据变化更新前', this); }, updated: function() { showData('数据变化更新后', this); }, beforeDestroy: function() { vm.test = "3333"; showData('vue实例销毁前', this); }, destroyed: function() { showData('vue实例销毁后', this); } }); function realDom() { console.log('真实dom结构:' + document.getElementById('app').innerHTML); } function showData(process, obj) { console.log(process); console.log('data 数据:' + obj.message) console.log('挂载的对象:') console.log(obj.$el) realDom(); console.log('------------------') console.log('------------------') } // vm.message = "good..."; vm.$destroy(); </script> </html>
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