组装数据--相同的clusterID合并在一起 左边是a接口 右边是B接口如 [{a接口},{b接口}]

var BJData = [
[{"city": "无锡市","clusterID": 1, "y": 31.809979797058332}, { "city": "苏州市", "clusterID":1, "x": 120.7485913653},],
[{name:'北京'}, {name:'天津'}],
[{name:'北京'}, {name:'河南',type:"mt"}],
[{name:'北京'}, {name:'甘肃',type:"mt"}]
];

data: {
             centerdata:[
               {"city": "无锡市","clusterID": 1,"y": 31.809979797058332},
               {"city": "廊坊市","clusterID": 2,"y": 39.215436433250005},
               {"city": "金华市","clusterID": 3,"y": 29.190387826775}
              ],
              sizhoudata:[
              { "city": "苏州市", "clusterID": 1, "x": 120.7485913653, },
              {"city": "重庆市","clusterID": 2,"x": 120.5818049003},
              {"city": "广汉市","clusterID": 3,"x": 140.5818049003}],
           },

created() {
             var newarr=[];
             for(let i in this.centerdata ){
               for(let j in this.sizhoudata){
                  if(this.centerdata[i].clusterID==this.sizhoudata[j].clusterID){
                     let arr=[this.centerdata[i],this.sizhoudata[j]]
                     newarr.push(arr);
                  }
               }
             }
             console.log(newarr)
           },