vue02-filters-computer
filters: 自动data里面的数据查找
computer: 重新计算data里面的数据
html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>Document</title>
</head>
<body>
  <h1>My App</h1>
  <div id="app"></div>
  <script src="https://unpkg.com/vue"></script>
  <script src="./main.js"></script>
</body>
</html>
main.js
const app = new Vue({
    el : ‘#app‘,
    data : {
        bobby: {
            first : ‘bobby‘,
            last : ‘banne‘,
            age : 25
        },
        john : {
            first : ‘john‘,
            last : ‘Baby‘,
            age : 25
        }
    },
    //自动计算
    computed : {
        bobbyFullName(){
            return `${this.bobby.first} ${this.bobby.last}`;
        },
        johnFullName(){
            return `${this.john.first} ${this.john.last}`;
        },
        bobbyAge(){
            return this.bobby.age;
        }
    },
    //查找
    filters: {
        ageInOneYear(age) {
          return age + 1;
        },
        fullName(value) {
          return `${value.last}, ${value.first}`;
        }
    },
    template : `<div>
        <h2>Name: {{bobbyFullName}}</h2>
        <h2>age: {{bobbyAge}}</h2>
        <h2>Name: {{john | fullName}}</h2>
    </div>`
})