Question

How to append keys from map to empty slice in Go

Answer 1

package main
  
import "fmt"
  
func main() {
    var mp = map[string]int{"go":35,"php":4, "c++":120, "python":8432}
     
    keys_slice := []string{}
    for key, _ := range mp {
        keys_slice = append(keys_slice, key)
    }

    fmt.Println(keys_slice)
}
  
  
  
  
/*
run:
  
[go php c++ python]
  
*/

 

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