如何在循环中使用co库？

Question

This is my sample code.

response.results.forEach((val, index) => {
    mu.co(function*() {
        uIds[index].response = val
        uIds[index].dateOnly = _.date
        uIds[index].count    = 1
        yield _.insertUserIdWiseResponse(uIds[index])
    })
})

I want to make it synchronized.

Answer 1

You have to write co ( mu.co(function*() {) statement outside the loop, it should work.
But you have to use it with (for(of) loop)

Answer 2

Correct way to do this is:

return mu.co(function*() {
    for (let [index, val] of response.results.entries()) {
        uIds[index].response = val
        uIds[index].dateOnly = _.date
        uIds[index].count    = 1
        yield notiResponse.upsert(uIds[index], notiResponse)
     }
})