package main
import (
"fmt"
"strconv"
"strings"
)
func replaceAllDigits(num float64, oldDigit, newDigit rune) float64 {
// Format the number to a string with 3 decimal places
strNum := fmt.Sprintf("%.3f", num)
// Replace all occurrences of oldDigit with newDigit
modifiedStr := strings.Map(func(r rune) rune {
if r == oldDigit {
return newDigit
}
return r
}, strNum)
// Convert the modified string back to float64
result, err := strconv.ParseFloat(modifiedStr, 64)
if err != nil {
return 0.0 // fallback in case of conversion error
}
return result
}
func main() {
fmt.Printf("%.3f\n", replaceAllDigits(82420.291, '2', '6'))
fmt.Printf("%.3f\n", replaceAllDigits(111.11, '1', '5'))
}
/*
run:
86460.691
555.550
*/
