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Stdle #21 · defer · 2026-06-27

What does this Go snippet output?

A past puzzle — fully playable. 4 attempts, hints on wrong guesses.

package main
 
import "fmt"
 
func main() {
	defer func() {
		if r := recover(); r != nil {
			fmt.Println("ok")
		}
	}()
	var m map[string]int
	m["a"] = 1
}
Defer
4 attempts left

Answer & explanation