Capitalize in Go

Published on 28 April 2022 (Updated: 02 February 2023)

Capitalize in Go

Welcome to the Capitalize in Go page! Here, you’ll find the source code for this program as well as a description of how the program works.

Current Solution

package main

import (

func exitWithError() {
	fmt.Println("Usage: please provide a string")

func uppercaseFirst(str string) string {
	s := string(str[0])
	u := strings.ToUpper(s)
	up := u + str[1:]
	return up

func main() {
	if len(os.Args) != 2 || len(os.Args[1]) == 0 {

	s := os.Args[1]
	up := uppercaseFirst(s)


Capitalize in Go was written by:

If you see anything you’d like to change or update, please consider contributing.

Note: The solution shown above is the current solution in the Sample Programs repository as of Oct 26 2019 20:30:14. The solution was first committed on Oct 09 2019 21:50:12. As a result, documentation below may be outdated.

How to Implement the Solution

No ‘How to Implement the Solution’ section available. Please consider contributing.

How to Run the Solution

No ‘How to Run the Solution’ section available. Please consider contributing.