*Here's the doc for shuffle in math/random*:
func Shuffle(n int <https://golang.org/pkg/builtin/#int>, swap func(i, j int
<https://golang.org/pkg/builtin/#int>))
Shuffle pseudo-randomizes the order of elements using the default Source. n
is the number of elements. Shuffle panics if n < 0. swap swaps the elements
with indexes i and j.
*And here's the example*:
package main
import (
"fmt"
"math/rand"
"strings"
)
func main() {
words := strings.Fields("ink runs from the corners of my mouth")
rand.Shuffle(len(words), func(i, j int) {
words[i], words[j] = words[j], words[i]
})
fmt.Println(words)
}
*Why can't I understand a word of it?*
(This is not atypical, by the way - and not just for go - so if someone can
educate me, I might suddenly start prospering in the software game)
Issues (for me):
- Shuffle doesn't seem to swap anything (the thing you want shuffled
isn't even an argument)
- As I read it the example, it should only swap two words (index i and
j) but it seems to shuffle the everything
- What's this bloody "func" thing???
- Why doesn't "swap" appear in the example?
Yours sincerely,
*Confused*
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