Uniapp操作自增key的object

`export default {
    data() {
        return {
            keyCounter:0,
        },
    methods: {
     addProperty(obj, value) {
       // 生成新的key
       let key = `${++this.keyCounter}`;
       // 将值添加到对象中
       obj[key] = value;
    },
    //调用
    somefunction(){
     info = {}
     subobj="values"
     this.addProperty(this.yyinfo, subobj)
    }
   },
}`