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A Tour of Go Range

The range form of the for loop iterates over a slice or map.

package mainimport "fmt"var pow = []int{1, 2, 4, 8, 16, 32, 64, 128}func main() {    for i, v := range pow {        fmt.Printf("2**%d = %d\n", i, v)    }}

 

A Tour of Go Range