那些企业网站做的漂亮,番禺网站建设哪家强,wordpress怎么添加会员中心,o2o网站源码app第065个 查看专栏目录: VUE ------ element UI 专栏目标 在vue和element UI联合技术栈的操控下#xff0c;本专栏提供行之有效的源代码示例和信息点介绍#xff0c;做到灵活运用。 #xff08;1#xff09;提供vue2的一些基本操作#xff1a;安装、引用#xff0c;模板使… 第065个 查看专栏目录: VUE ------ element UI 专栏目标 在vue和element UI联合技术栈的操控下本专栏提供行之有效的源代码示例和信息点介绍做到灵活运用。 1提供vue2的一些基本操作安装、引用模板使用computedwatch生命周期(beforeCreatecreated,beforeMountmounted, beforeUpdateupdated, beforeDestroydestroyedactivateddeactivatederrorCapturedcomponents)、 $root , $parent , $children , $slots , $refs , props, $emit , eventbus ,provide / inject, Vue.observable, $listeners, $attrs, $nextTick , v-for, v-if, v-else,v-else-ifv-onv-prev-cloakv-oncev-model v-html, v-text, keep-aliveslot-scope filters, v-bind.stop, .native, directivesmixinrender国际化Vue Router等 2提供element UI的经典操作安装引用国际化el-rowel-colel-buttonel-linkel-radioel-checkbox el-inputel-select, el-cascader, el-input-number, el-switch,el-slider, el-time-picker, el-date-picker, el-upload, el-rate, el-color-picker, el-transfer, el-form, el-table, el-tree, el-pagination,el-badge,el-avatar,el-skeleton, el-empty, el-descriptions, el-result, el-statistic, el-alert, v-loading, $message, $alert, $prompt, $confirm , $notify, el-breadcrumb, el-page-header,el-tabs ,el-dropdown,el-steps,el-dialog, el-tooltip, el-popover, el-popconfirm, el-card, el-carousel, el-collapse, el-timeline, el-divider, el-calendar, el-image, el-backtopv-infinite-scroll el-drawer等 本文章目录 专栏目标示例背景示例效果图示例源代码 示例背景 在做vue项目时候有的需求是将一维的对象数组转换成二维的对象数组怎么操作呢 在本示例中按照时间的划分将一维对象数组转化为二维对象数组。第一维度的内容是时间第二纬度的内容是一维数组中的某一项。 示例效果图 示例源代码 /* * Author: 大剑师兰特xiaozhuanlan还是大剑师兰特CSDN * 此源代码版权归大剑师兰特所有可供学习或商业项目中借鉴未经授权不得重复地发表到博客、论坛问答git等公共空间或网站中。 * Email: 2909222303qq.com * weixin: gis-dajianshi * First published in CSDN * First published time: 2024-01-12 */templatediv classdjs-boxdiv classtopBoxh3vue项目中 将一维对象数组转换为二维对象数组 /h3div大剑师兰特, 还是大剑师兰特gis-dajianshi/divh4el-button clickgo() typeprimary sizemini 转换数据/el-button/h4/divdiv classdajianshidiv classlefth4变换后的一维数组/h4p v-for(item,index) in arr1 :keyindex 时间{{item.time}}- 年份{{item.year}}- 原索引{{item.indexId}}/p/divdiv classrighth4变成二维数组/h4div v-for(item1,index1) in arr2 :keyindex1 ● 时间{{item1.time}}div v-for(item2,index2) in item1.children :keyindex2 classlh30nbsp;nbsp;nbsp;nbsp; 内容{{item2.info}}-代号-{{item2.code}} -- 原索引{{item2.indexId}}-时间{{item2.time}}/div/div/div/div/div /templatescriptexport default {data() {return {arr: [{time: 2023-12-07,code: S10,gname: G10,info: 大剑师1},{time: 2023-12-07,code: S10,gname: G10,info: 大剑师2},{time: 2023-12-07,code: S11,gname: G11,info: 大剑师3},{time: 2023-12-08,code: S10,gname: G10,info: 大剑师4},{time: 2023-12-08,code: S11,gname: G11,info: 大剑师5},{time: 2023-12-09,code: S12,gname: G12,info: 大剑师6}],arr1: [],arr2: [],}},mounted() {this.arr1 this.dajianshi_arr1to1(this.arr)},methods: {go() {this.arr2 this.dajianshi_arr1to2(this.arr1)console.log(this.arr2)},dajianshi_arr1to1(arr) {let newArr arr.map((item, index) {return {...item,indexId: index,year: item.time.substr(0, 4),}})return newArr;},dajianshi_arr1to2(arr) {let keys Object.keys(arr[0])let level1 time //获取一级属性名称let list Array.from(new Set(arr.map(item {return item[level1]})))let subList []list.forEach(res {arr.forEach(ele {if (ele[level1] res) {let nameArr subList.map(item item.time)if (nameArr.indexOf(res) ! -1) {subList[nameArr.indexOf(res)].children.push({...ele})} else {subList.push({time: res,// label: res,children: [{...ele }]})}}})})return subList}}} /script style scoped.djs-box {width: 1000px;height: 680px;margin: 50px auto;border: 1px solid peru;}.topBox {margin: 0 auto 0px;padding: 10px 0 20px;background: peru;color: #fff;}.dajianshi {width: 98%;height: 480px;margin: 5px auto 0;}.lh30{ line-height: 30px;}.left {width: 50%;height: 100%;float: left;overflow-y: auto;background: #fed;}.right {width: 50%;height: 100%;float: left;overflow-y: auto;background: #edc;text-align: left;padding-left: 15px;box-sizing: border-box;} /style