Capitalize in Go

Published on 09 October 2019 (Updated: 26 October 2019)

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 (
	"fmt"
	"os"
	"strings"
)

func exitWithError() {
	fmt.Println("Usage: please provide a string")
	os.Exit(1)
}

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 {
		exitWithError()
	}

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

	fmt.Println(up)
}

Capitalize in Go was written by:

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

How to Implement the Solution

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How to Run the Solution

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