How to convert a floating-point number to a string with a specified precision using strconv.FormatFloat() in Golang?

To convert a floating-point number to a string with a specified precision using strconv.FormatFloat() in Golang, you can follow the steps below:

Import the required package: import "strconv"
Declare the floating-point number that you want to convert to a string.
num := 3.14159
Specify the desired precision using strconv.FormatFloat() function. It takes four arguments: the value to be converted, the format 'f' to specify floating-point format, the precision, and the bit size.
precision := 2 str := strconv.FormatFloat(num, 'f', precision, 64)
In this example, we set the precision to 2 and the bit size to 64.

Note: The bit size argument specifies whether it is a float32 (32 bits) or a float64 (64 bits).
Print the converted value.
fmt.Println(str)

The complete code snippet looks like this:

package main

import (
	"fmt"
	"strconv"
)

func main() {
	num := 3.14159
	precision := 2
	str := strconv.FormatFloat(num, 'f', precision, 64)
	fmt.Println(str)
}

Output:

3.14

The strconv.FormatFloat() function converts the float to a string representation with the specified precision.