当我们从后台得到数据格式如下,我们需要求每个用户money的和,就可以这样做。
var arry = [
{user_id:1,money:100},
{user_id:2,money:33},
{user_id:1,money:12},
{user_id:3,money:21},
{user_id:2,money:43},
{user_id:1,money:12}
]
var temp = {};
for(var i in arry) {
var key= arry[i].user_id;
if(temp[key]) {
temp[key].money += arry[i].money;
temp[key].user_id = arry[i].user_id;
} else {
temp[key] = {};
temp[key].money = arry[i].money;
temp[key].user_id = arry[i].user_id;
}
}
console.log(temp)
var newArry = [];
for(var k in temp){
newArry.push(temp[k])
}
console.log(newArry)
控制台输出如下: