let arr1 = [{id:'1',name:'json'},{id:'2',name:'book'} ]
let arr2 = [{id:'1',name:'json',age:'15'},{id:'2',name:'book',age:'16'},{id:'3',name:'ani',age:'17'}]
//ES6的方法
let add = arr2.filter(item => !arr1.some(ele=>ele.id===item.id));
cosnole.log(add);
//ES5的方法
for (var i=0; i
arr2.splice(i, 1);
}
}
}