Question

我正在尝试从函数中获取count值，并希望存储在函数外部。

var count;      
client.count({
                index: 'employee',
                type: 'details',
            }, function (err, response) {
                    if(err){console.log(err)}
                    count = response.count
                    console.log(count);
    });

console.log（count）; 我想在函数之外使用这个计数。这可能吗？

Answer 1

尝试以这种方式编写代码：

client.count({
                index: 'employee',
                type: 'details',
            }, afterCount);
function afterCount(err, count){
    if (err) console.log(err);
    // do whatever you want with count
    // if there's too much logic, split it into functions and send count as a param to them
}

Answer 2

包装函数或使用Promise API重构代码。

select ownerId, Count(ownerId)
from Apartment
group by ownerId

sails：如何获得函数之外的值

2 个答案: