//這裏是我用的方法,關於數組去重的其它方法還可以參考下方鏈接
數組去重以及數組對象中多屬性判斷去重
let data = [
{ name: "a", age: 20, count: 5 },
{ name: "b", age: 21, count: 8 },
{ name: "a", age: 20, count: 9 }
];
let result = data.reduce((result, item, seq) => {
let temp = 0;
let flag = result.some((eve, index) => {
temp = index;//記錄相等時的索引值
return eve['name'] == item['name'] && eve['age'] && item['age']
})
if (flag) {
result[temp]['count'] += (',' + item['count'])//如果重複,就合併數據
} else {
result.push(item)//如果不重複,就往新數據裏追加
}
return result;
}, [])
console.log(result);