vue.set( target, key, value ) this.$set (대상 수조, 변경할 구체적인 데이터, 재할당) 사용법

 ：Vue.set( target, key, value )

target： ( )

key： 

value ： 

 
js ：

// 

let j = { id: 0, "progressTime": "", "progressContent": "", "isSet": true, "_temporary": true };

_this.tableInFormData = []

//  
this.tableInFormData.push(j); 
// isSet true  v-if 
 _this.$set(_this.tableInFormData[index],"isSet",true)　　　　　　　　

　　　　　　　　　　<el-table-column label=" "
                                 width="300"
                                 :show-overflow-tooltip="true">
                    <template slot-scope="scope" >
                         <span v-if="scope.row.isSet">
                             <el-date-picker
                                     v-model="form2.progressTime"
                                     type="datetime"
                                     :picker-options="pickerBeginDateBefore"
                                     format="yyyy-MM-dd HH:mm:ss"
                                     value-format="yyyy-MM-dd HH:mm:ss"
                                     placeholder=" ">
                                     
                              el-date-picker>
                          span>
                        <span v-else>{{changeTimeToDate(scope.row.ProgressTime) }}span>
                    template>
                el-table-column>
                <el-table-column prop="ProgressContent"
                                 label=" "
                                 :show-overflow-tooltip="true">
                    <template slot-scope="scope">
                         <span v-if="scope.row.isSet">
                             <el-input size="small" v-model="form2.progressContent" placeholder=" " >el-input>
                         span>
                        <span v-else>{{(scope.row.ProgressContent) }}span>
                    template>
                el-table-column>