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Golang strings.Repeat() Function with Examples

Golang | strings.Repeat() Function: Here, we are going to learn about the Repeat() function of the strings package with its usages, syntax, and examples.
Submitted by IncludeHelp, on August 19, 2021

strings.Repeat()

The Repeat() function is an inbuilt function of strings package which is used to create a string consisting of count copies of the given string. It accepts two parameters – string and count, and returns a new string consisting of count copies of the string.

Note: The function may return an error if the value of count is -1 or len(string)*count overflows.

Syntax

func Repeat(str string, count int) string

Parameters

• str : The main string to be used to create a new string.
• count : Count of copies of the string (str).

Return Value

The return type of Repeat() function is a string, it returns a new string consisting of count copies of the string.

Example 1

// Golang program to demonstrate the
// example of strings.Repeat() Function

package main

import (
	"fmt"
	"strings"
)

func main() {
	fmt.Println(strings.Repeat("Hello, world! ", 2))
	fmt.Println(strings.Repeat("Hello, world! ", 4))
	fmt.Println(strings.Repeat("Hi, ", 2))
	fmt.Println("Hey world! " + strings.Repeat("Hi! ", 5))
}

Output:

Hello, world! Hello, world! 
Hello, world! Hello, world! Hello, world! Hello, world! 
Hi, Hi, 
Hey world! Hi! Hi! Hi! Hi! Hi! 

Example 2

// Golang program to demonstrate the
// example of strings.Repeat() Function

package main

import (
	"fmt"
	"strings"
)

func main() {
	var str string
	var count int
	var new_string string

	str = "Hello, world! "
	count = 5
	new_string = strings.Repeat(str, count)
	fmt.Printf("str: %q, count: %d\n", str, count)
	fmt.Printf("new_string: %q\n", new_string)

	str = "This is a program."
	count = 2
	new_string = strings.Repeat(str, count)
	fmt.Printf("str: %q, count: %d\n", str, count)
	fmt.Printf("new_string: %q\n", new_string)

	str = "Hibiscus Iced Tea at Starbuck. "
	count = 2
	new_string = strings.Repeat(str, count)
	fmt.Printf("str: %q, count: %d\n", str, count)
	fmt.Printf("new_string: %q\n", new_string)
}

Output:

str: "Hello, world! ", count: 5
new_string: "Hello, world! Hello, world! Hello, world! Hello, world! Hello, world! "
str: "This is a program.", count: 2
new_string: "This is a program.This is a program."
str: "Hibiscus Iced Tea at Starbuck. ", count: 2
new_string: "Hibiscus Iced Tea at Starbuck. Hibiscus Iced Tea at Starbuck. "

Golang strings Package Functions »

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