Let's say you're reading in data from a file or otherwise dealing with an
arbitrary string of data. If that string has a series of values separated by
whitespace, you can parse it into individual fields with
strings.Fields
.
import (
"fmt"
"strings"
)
func main() {
data := "3 5 2 6 7 1 9"
fields := strings.Fields(data)
fmt.Printf("Fields: %v", fields)
// [3 5 2 6 7 1 9]
}
Here is another example where we can see that strings.Fields
deals with
multiple whitespace and surrounding whitespace:
import (
"fmt"
"strings"
)
func main() {
data := " go java c++ rust "
fields := strings.Fields(data)
fmt.Printf("%v", fields)
// [go java c++ rust]
}