vue实现将一维数组变换为三维数组

<template>
	<div class="djs-box">
		<div class="topBox">
			<h3>vue中将一维数组变换为三维数组 </h3>
			<div>大剑师兰特, 还是大剑师兰特，gis-dajianshi</div>
			<h4>
				<el-button @click="go()" type="primary" size="mini"> 转换数据</el-button>
			</h4>
		</div>
		<div class="dajianshi">
			<div class="left">
				<h4>一维数组</h4>
                <p v-for="(item,index) in arr"  :key="index"> 时间：{{item.time}}-组别：{{item.satGroupName}}</p>
			</div>
			<div class="middle">
				<h4>变换后的一维数组</h4>
				<p v-for="(item,index) in arr1" :key="index"> 时间：{{item.time}}- 年份：{{item.year}}- 原索引：{{item.indexId}}</p>
			</div>
			<div class="right">
				<h4>变成三维数组</h4>
				<div v-for="(item1,index1) in arr3" :key="index1"> ● 时间：{{item1.time}}
				    <div v-for="(item2,index2) in item1.children" :key="index2">
						     ♥ 组别：{{item2.satGroupName}}-代号-{{item2.satName}}
						 <div v-for="(item3,index3) in item2.children" :key="index3">
							        ★ {{ item3.inner}} - 时间：{{item3.time}}
							 
						 </div>
					</div>
				</div>
			</div>

		</div>

	</div>
</template>

<script>
	export default {
		data() {
			return {
				arr: [{
						'time': '2023-12-07',
						'satName': 'S10',
						'satGroupName': 'G10',
						'inner': '内部1'
					},
					{
						'time': '2023-12-07',
						'satName': 'S10',
						'satGroupName': 'G10',
						'inner': '内部2'
					},
					{
						'time': '2023-12-07',
						'satName': 'S11',
						'satGroupName': 'G11',
						'inner': '内部3'
					},
					{
						'time': '2023-12-08',
						'satName': 'S10',
						'satGroupName': 'G10',
						'inner': '内部4'
					},
					{
						'time': '2023-12-08',
						'satName': 'S11',
						'satGroupName': 'G11',
						'inner': '内部5'
					},
					{
						'time': '2023-12-09',
						'satName': 'S12',
						'satGroupName': 'G12',
						'inner': '内部6'
					}
				],
				arr1: [],
				arr3: [],
			}
		},
		mounted() {},

		methods: {
			go() {
				this.arr1= this.dajianshi_arr1to1(this.arr)
				this.arr3 = this.dajianshi_arr1to3(this.arr1)
			},
			dajianshi_arr1to1(arr) {
				let newArr = arr.map((item, index) => {
					return {
						...item,
						indexId: index,
						year:item.time.substr(0, 4),
					}
				})
				return newArr;
			},

			dajianshi_arr1to3(arr) {
				let keys = Object.keys(arr[0])
				let level1 = 'time' //获取一级属性名称
				let level2 = 'satName' //获取二级属性名称
				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)
							console.log(nameArr)
							if (nameArr.indexOf(res) !== -1) {
								let nameArr2 = subList[nameArr.indexOf(res)].children.map(item => item
									.satName)
								if (nameArr2.indexOf(ele[level2]) !== -1) {
									subList[nameArr.indexOf(res)].children[nameArr2.indexOf(ele[level2])]
										.children.push({
											...ele
										})
								} else {
									subList[nameArr.indexOf(res)].children.push({
										satName: ele[level2],
										satGroupName: ele.satGroupName,
										children: [{
											...ele
			 						}]
									})
								}
			  		} else {
								subList.push({
									time: res,
									// label: res,
									children: [{
										satName: ele[level2],
										satGroupName: ele.satGroupName,
										children: [{
											...ele
										}]
									}]
								})
							}
						}
					})

				})
				return subList
			}
		}
	}
</script>
<style scoped>
	.djs-box {
		width: 1000px;
		height: 680px;
		margin: 50px auto;
		border: 1px solid blueviolet;
	}

	.topBox {
		margin: 0 auto 0px;
		padding: 10px 0 20px;
		background: blueviolet;
		color: #fff;
	}

	.dajianshi {
		width: 98%;
		height: 480px;
		margin: 5px auto 0;		
	}

	.left {
		width: 30%;
		height: 100%;
		float: left;
		overflow-y: auto;
		background: #fed;
	}
	.middle {
		width: 35%;
		height: 100%;
		float: left;
		overflow-y: auto;
		background: #dcb;
	}

	.right {
		width: 35%;
		height: 100%;
		float: left;
		overflow-y: auto;
		background: #edc;
		text-align: left;
		padding-left: 15px;
		box-sizing: border-box;
	}
</style>