使用golang省略函数参数中的数组类型[重复]

Question

This question already has an answer here:

• Type converting slices of interfaces 5 answers

I'm writing a write method, to write an array of value to InfluxDB

What I would like is to be able to have something like:

func (influxClient *InfluxClient) Write(myArray []interface{}) (error) {
    fmt.Print(myArray)
    // Insert into DB
    return nil

}

Where myArray could be an array with any objects inside

I tried to use myArray []interface{} to ommit myArray's type, but it doesn't work, I get:

Cannot use 'meters' (type []models.Meter) as type []interface{}

Is it possible to achieve it ?

How should I do ?

</div>

Answer 1

This happens because []models.Meter and []interface{} are two different types for the Go compiler.

Using interface{} is not a best-practice typically. It would be better to define your own type and use that instead.

Having said that, the quickest solution for your case should be to make Write function a variadic one. Like the example below.

https://play.golang.org/p/KzzFMAjQvRa

func Write(myArray ...interface{}) (error) {
    fmt.Printf("Slice: %v
", myArray)
    // Insert into DB
    return nil

}