react 数组中添加json数据

  var  tempLegalBackArray = [];
  if(data.data.legalImageBack){// 有身份证正面
    tempLegalBackArray = this.state.legalIdsBackFileList;
    var tempJson =  {
    uid:-1,
    status:"done",
    url:data.data.legalImageBack,
    };
    tempLegalBackArray.push(tempJson)
    console.log("构造的json为",tempLegalBackArray );
  }