golang-quiz

simple golang questions All resources https://twitter.com/bot_golang

package main

import "fmt"

func hello(a...interface{}){
   fmt.Println(len(a))
}

func main() {	
   hello(nil)
}

answer options

- 1
- runtime panic
- compilation error

click show answer

- 1

---

package main

import "fmt"

func hello(p ...int){
	if p==nil {
	  fmt.Println("nil")
	  return
	}
	fmt.Println("not nil")
}

func main() {	
   hello()
}

answer options

- nil
- not nil
- compilation error

click show answer

- nil

---

package main

import "fmt"

func main() {
	i := 0 
	_,i = 5,8
	fmt.Println(i)
}

answer options

- runtime panic
- 8
- compilation error
- 5

click show answer

- 8

---

package main

import "fmt"

func main() {
	 
	s := make(map[string]int)
	delete(s,"h")
	fmt.Println(s["h"])
}

answer options

- runtime panic
- 0
- compilation error

click show answer

- 0

---

package main

import "fmt"

func main() {
	fmt.Printf("%%")
}

answer options

- 0.0
- compilation error
- %
- %%

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- %

---

package main

import "fmt"

func hello(i int) {
	fmt.Println(i)
}

func main() {
	i := 5
	defer hello(i)
	i = i + 10
}

answer options

- 5
- 15
- 0

click show answer

- 5

---

package main

import "fmt"

func main() {

	var i interface{}

	if i == nil {
		fmt.Println("nil")
		return
	}
	
	fmt.Println("not nil")
	
}

click show answer

- nil

---

package main

import "fmt"

func main() {
	a := 5
	b := 8.1
	fmt.Println(a+b) 	
}

answer options

- 13.1
- 13
- compilation error

click show answer

- compilation error