Go by Example: Multiple Return Values
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Go has built-in support for multiple return values. This feature is used often in idiomatic Go, for example to return both result and error values from a function. |
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package main
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import "fmt"
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The |
func vals() (int, int) {
return 3, 7
}
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func main() {
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Here we use the 2 different return values from the call with multiple assignment. |
a, b := vals()
fmt.Println(a)
fmt.Println(b)
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If you only want a subset of the returned values,
use the blank identifier |
_, c := vals()
fmt.Println(c)
}
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$ go run multiple-return-values.go
3
7
7
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Accepting a variable number of arguments is another nice feature of Go functions; we’ll look at this next. |
Previous example: Functions.
Next example: Variadic Functions.