vue过滤

<input type="text" v-model="searchName" />
<ul>
    <li v-for="(p,index) in filterPersons" :key="index">{{index}}--{{p.name}}--{{p.age}}</li>
</ul>
data: {
    searchName: '',
    persons: [{
        name: 'zc',
        age: '1'
    }, {
        name: 'xv',
        age: '3'
    }, {
        name: 'bn',
        age: '6'
    }, {
        name: 'nz',
        age: '18'
    }]
},
computed: {
    filterPersons: function() {
        const {
            searchName,
            persons
        } = this;
        let fPersons;
        fPersons = persons.filter(p = > p.name.indexOf(searchName) !== -1 || p.age.indexOf(searchName) !== -1)
        return fPersons;
    }
}