vue之添加响应式属性
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <div id="app"> <h3> {{user.name}},{{user.age}},{{user.phone}} <button @click='handlerAdd'>添加属性</button> </h3> </div> <script src="./vue.js"></script> <script> // Vue不能检测对象属性的添加和删除 new Vue({ el:"#app", data:{ user:{} }, methods: { handlerAdd() { // Vue.$set(object,key,value)添加响应式属性 // this.user.age = 20; // this.$set(this.user,'age',20); // 添加多个响应式属性 this.user = Object.assign({},this.user,{ age:20, phone:98564123 }) } }, created(){ setTimeout(() => { this.user = { name:"张三" } }, 1250); } }) </script> </body> </html>