How to get sequential data from go func()?

Question

go

Hello!

The code:

var st make([]string, 0)

for _, word := range stro { 

sts, err := au(word , na , la, ge)

st = append(st,  sts)
}

//st processing
with this approach, it processes for a long time.

When I do:

for _, word := range stro { 
func() {
sts, err := au(word , na , la, ge)

st = append(st,  sts)
}()
// st обработка
}

Processes quickly, but the data is not received consistently.

How can I get data sequentially from go func() {}() according to sending word ?

Answer 1

You have the output in an array, with the element numbers corresponding to the output. Therefore, it will be easiest to put them directly in the desired cells.

st := make([]string, len(stro))
  for i := range stro {
    func(i int) {
      word := stro[i]

      sts, err := au(word, na, la, ge)
      if err != nil {
        // .....
      }

      st[i] = sts
    }(i)
  }

Please note that I am passing i as a function parameter, this is important, because the variables that are used in the loop cannot be passed through the closure to the goroutines, because during the loop these variables change their value every iteration.