我有一个对象数组，并且有一些重复的对象
const data = [
{
"id": "1011",
"name": "abc",
"Dob": "3/2/11",
"timeCreated": "16:03:41"
},
{
"id": "1012",
"name": "xys",
"Dob": "6/5/12",
"timeCreated": "01:05:21"
},
{
"id": "1011",
"name": "xyz",
"Dob": "3/2/11",
"timeCreated": "17:03:41"
},
{
"id": "1011",
"name": "xyz",
"Dob": "3/2/11",
"timeCreated": "15:03:41"
}
]
我正在使用 some() 删除数组中的重复项
let arr = [];
data.forEach(obj => {
if (!arr .some(o => o.id === obj.id)) {
arr.push({ ...obj})
}
});
我需要帮助过滤它并且只保留基于“timeCreated”的最新对象
所以数据看起来像这样：
{
"id": "1012",
"name": "xys",
"Dob": "6/5/12",
"timeCreated": "01:05:21"
},
{
"id": "1011",
"name": "xyz",
"Dob": "3/2/11",
"timeCreated": "17:03:41"
},
]
你可以这样做：
const data =
[ { id: '1011', name: 'abc', Dob: '3/2/11', timeCreated: '16:03:41' }
, { id: '1012', name: 'xys', Dob: '6/5/12', timeCreated: '01:05:21' }
, { id: '1011', name: 'xyz', Dob: '3/2/11', timeCreated: '17:03:41' }
, { id: '1011', name: 'xyz', Dob: '3/2/11', timeCreated: '15:03:41' }
]
const arr = data.reduce((result,obj)=>
{
let row = result.find(x=>x.id===obj.id)
if (!row)
result.push({...obj})
else if (row.timeCreated < obj.timeCreated)
Object.assign(row,obj)
return result
},[])
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