我使用数组对象进行数据收集，如何使用From Data追加数据？在Axios，Nuxt，Vue js

let collection = [{
        name: "tony",
        obj: {
          id: 1,
          code: "obj1",
          name: "john",
        },
        arr: [{
          id: 1,
          code: "arr1",
          name: "john"
        },{
          id: 2,
          code: "arr2",
          name: "john",
        }],
        address: "USA"
    }];