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| <template> <el-table :data="tableData" border style="width: 100%" :span-method="objectSpanMethod" > <el-table-column prop="date" label="日期" width="180"> </el-table-column> <el-table-column prop="name" label="姓名" width="180"> </el-table-column> <el-table-column prop="address" label="地址"> </el-table-column> </el-table> </template>
<script> export default { name: "table", data() { return { tableData: [{ date: '2016-05-02', name: '王小虎', address: '上海市普陀区金沙江路 1518 弄' }, { date: '2016-05-02', name: '王小虎', address: '上海市普陀区金沙江路 1517 弄' }, { date: '2016-05-01', name: '王小虎', address: '上海市普陀区金沙江路 1519 弄' }, { date: '2016-05-03', name: '王小虎', address: '上海市普陀区金沙江路 1516 弄' }], arr1:[], arr2:[] } }, created() { this.setdates(this.tableData) }, methods: { setdates(arr) { var obj = {}, k, arr1 = []; for(var i = 0, len = arr.length; i < len; i++) { k = arr[i].date;//需要合并的字段 if(obj[k]) obj[k]++; else obj[k] = 1; } console.log(obj) //保存结果{el-'元素',count-出现次数} for(var o in obj) { for(let i=0;i<obj[o];i++){ if(i===0){ this.arr1.push(obj[o]) }else{ this.arr1.push(0) } } } console.log(this.arr1);
},
objectSpanMethod({ row, column, rowIndex, columnIndex }) { if (columnIndex === 0 ) { let _row = this.arr1[rowIndex] let _col = this.arr1[rowIndex] > 0 ? 1 : 0 return [_row,_col] } } } }; </script>
<style scoped>
</style>
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