根据数组对象中相同属性值组建新数组——方便递归-js将数组对象中某个值相同的对象合并成一个新对象

根据数组对象中相同属性值组建新数组——方便递归-js将数组对象中某个值相同的对象合并成一个新对象

实例

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta seattypeid="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
    //效果1
        // var beforeData = [{
        //         "seattypeid": "tony",
        //         id: "1",
        //         showName: "20"
        //     },
        //     {
        //         "seattypeid": "tony",
        //         id: "3",
        //         showName: "50"
        //     }
        // ]

    //效果2
        var beforeData = [{
                name: "tony",
                id: "1",
                age: "20"
            },
            {
                name: "jack",
                id: "2",
                age: "21"
            },
            {
                name: "tony",
                id: "3",
                age: "50"
            },
            {
                name: "jack",
                id: "4",
                age: "10"
            },
            {
                name: "mark",
                id: "5",
                age: "22"
            },
            {
                name: "mark",
                id: "6",
                age: "40"
            }
        ]
        var afterData = [];

        // let tempArr = [];
        // for (let i = 0; i < this.beforeData.length; i++) {
        //     if (tempArr.indexOf(this.beforeData[i].seattypeid) === -1) {
        //         this.afterData.push({
        //             seattypeid: this.beforeData[i].seattypeid,
        //             children: [this.beforeData[i]]
        //         });
        //         tempArr.push(this.beforeData[i].seattypeid);
        //     } else {
        //         for (let j = 0; j < this.afterData.length; j++) {
        //             if (this.afterData[j].seattypeid == this.beforeData[i].seattypeid) {
        //                 this.afterData[j].children.push(this.beforeData[i]);
        //                 break;
        //             }
        //         }
        //     }
        // }

        let tempArr = [];
        for (let i = 0; i < this.beforeData.length; i++) {
            if (tempArr.indexOf(this.beforeData[i].name) === -1) {
                this.afterData.push({
                    name: this.beforeData[i].name,
                    origin: [this.beforeData[i]]
                });
                tempArr.push(this.beforeData[i].name);
            } else {
                for (let j = 0; j < this.afterData.length; j++) {
                    if (this.afterData[j].name == this.beforeData[i].name) {
                        this.afterData[j].origin.push(this.beforeData[i]);
                        break;
                    }
                }
            }
        }
        console.log(afterData)
    </script>
</body>

</html>

显示效果1

在这里插入图片描述

显示效果2

在这里插入图片描述

版权声明：本文为weixin_44867717原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。