Array of different types
This is an example Go program which demonstrates building an array
consisting of different types of data using interface
and a
type switch:
package main import "fmt" func main() { array := []interface{}{1, 2, "apple", true} for _, element := range array { switch v := element.(type) { case int: fmt.Printf("It's a number, %d.\n", v) case string: fmt.Printf("It's a string, '%s'.\n", v) case bool: fmt.Printf("It's a boolean, %t.\n", v) default: fmt.Printf("I can't handle %q.\n", v) } } }
The output of the example looks like this:
It's a number, 1. It's a number, 2. It's a string, 'apple'. It's a boolean, true.
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Ben Bullock
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