Question

How to convert string to int in Go

Answer 1

package main

import (
	"fmt"
	"strconv"
	"reflect"
)

func main() {
	s := "9813"
	i, err := strconv.Atoi(s)
	
	fmt.Println(i, err, reflect.TypeOf(i))
}





/*
run:
  
9813 <nil> int
  
*/

 

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Answer 2

package main

import (
	"fmt"
	"strconv"
	"reflect"
)

func main() {
	s := "9812"
	i, err :=  strconv.ParseInt(s, 0, 64)
	
	fmt.Println(i, err, reflect.TypeOf(i))
}





/*
run:
  
9813 <nil> int
  
*/

 

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Answer 3

package main
  
import (
    "fmt"
    "strconv"
    "reflect"
)
  
func main() {
    s := "87293"
    i, _ := strconv.ParseInt(s, 10, 64) 
  
    fmt.Println(i) 
    fmt.Println(reflect.TypeOf(i)) 
}
  
  
  
  
/*
run:
  
87293
int64
  
*/

 

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