[JavaScript知识库]对象拼接合并

let options2 = [{
          label: '江苏',
          value : '11',
          cities: [
            {
                label: ' 南京1101',
                value : '1101'
            },
            {
                label: '无锡1102',
                value : '1102'
            }
          ]
        }, {
          label: '浙江',
          value: '22',
          cities: [
            {
                label: '温州温州wn2201',
                value : '2201'
            },
            {
                label: '义务义务2202',
                value : '2202'
            }
          ]
        }]
        
        
        
        function aaa(arr){
            let ojb = {
                name : '',
                code : ''
            };
            let subOjb = {};
            let AllOjb = {};
            options2.map( (item,index) => {
  

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