vue3 element plus el-table封装（二）
上文是对el-table的基本封装，只能满足最简单的应用，本文主要是在上文的基础上增加slot插槽，并且对col插槽进行拓展，增加通用性
// BaseTable.vue
<template><el-table><template v-for="name in tableSlots" :key="name" #[name]><slot :name="name"></slot></template><el-table-column v-for="(col,index) in $attrs.config" :key="index" v-bind="col"><template v-if="col.slot" #[getColSlot(col)]="scope" ><slot :name="col.slot" v-bind="scope"></slot></template></el-table-column></el-table>
</template>
<script lang="ts" setup>
const slots=useSlots();
const tableSlots=computed(()=>{// 原生el-table插槽只有default,append,empty// 原生el-table-column插槽只有table插槽只有default,header// 这里将header单独处理，认为是col的插槽，从table插槽中排除return Object.keys(slots).filter(name=>name!=='header')
})
const getColSlot=(col)=>{return col.slot==='header'?'header':'default'
}
</script>
//index.vue
<template><BaseTable :config="config" :data="tableData" :style="{width:'800px'}"><template #status="scope"><el-text :type="scope.row.status.type ">{{ scope.row.status.content }}</el-text></template><template #btn="scope"><el-button type="primary">{{ scope.row.btn }}</el-button></template><!-- 如有多个类似slot，也可以用如下方式渲染 --><!-- <template v-for="(col,index) in config.filter(item=>item.slot && item.slot!=='header')" :key="index" #[col.slot]="scope"><el-button type="primary">{{ scope.row.btn }}</el-button></template> --><template #header="scope"><el-button type="primary">{{ scope.column.label }}</el-button></template></BaseTable>
</template><script lang="ts" setup>
import BaseTable from './BaseTable.vue'
const config=[{type:'selection'},{prop: 'date',label:'日期',width:'180'},{prop: 'name',label:'姓名',},{prop: 'status',label:'状态',slot:'status',width:'180'},{prop: 'btn',label:'操作',slot:'btn',width:'180'},{prop: 'header',label:'按钮header',slot:'header',width:'180'},
];
const tableData = [{date: '2016-05-03',name: '张三',status:{content:'工作',type:'success'},btn: 'confirm',},{date: '2016-05-02',name: '李四',status:{content:'出差',type:'primary'},btn: 'confirm',},{date: '2016-05-04',name: '王五',status:{content:'休假',type:'danger'},btn: 'confirm',},
]
</script>
