Question

How to round a decimal to 2 decimal places in Go

Answer 1

package main

import (
	"fmt"
	"math"
)

func roundToTwoDecimalPlaces(value float64) float64 {
	return math.Round(value*100) / 100
}

func main() {
	number := 2.431;
	rounded := roundToTwoDecimalPlaces(number)
	fmt.Printf("Rounded: %.2f\n", rounded)
	
	number = 2.457;
	rounded = roundToTwoDecimalPlaces(number)
	fmt.Printf("Rounded: %.2f\n", rounded)
}


/*
run:

Rounded: 2.43
Rounded: 2.46

*/

 

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