两个对象相同数据赋值

 

    let A = {
      name:"",
      age:"",
      sex:"",
      address:"",
      grade:"",
      like:"吃饭,睡觉,打豆豆"
    };
    let B = {
      name:"huangjunhui",
      age:40,
      sex:"男",
      address:"地球中国湖北",
      grade:"",
      like:"看着美女笑OR笑着看美女",  //这个属性会把A中的覆盖掉
      company:"这个属性不是公有的,不要放入A中",
    }

  Object.keys(A).forEach(i=>{A[i] = B[i] || A[i]});

console.log(A)