Question

How to convert string to float in Go

Answer 1

package main

import (
	"fmt"
	"strconv"
)

func main() {
    s := "3.14159265359"
    f, _ := strconv.ParseFloat(s, 8) 

    fmt.Println(f) 
  
}




/*
run:

3.14159265359

*/

 

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Answer 2

package main

import (
	"fmt"
	"strconv"
)

func main() {
    s := "3.14159265359"
    f, _ := strconv.ParseFloat(s, 32) 

    fmt.Println(f) 
  
}




/*
run:

3.1415927410125732

*/

 

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Answer 3

package main

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

func main() {
	s := "3.14159265359"
	f, err := strconv.ParseFloat(s, 16)
	
	fmt.Println(f, err, reflect.TypeOf(f))
}





/*
run:
  
3.14159265359 <nil> float64
  
*/

 

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