How to reverse string in C#

Kirtesh Shah

1y675.NET

2 Answers

//For high-performance

string input = "Hello World";

Span<char> buffer = stackalloc char[input.Length];

for (int i = 0; i < input.Length; i++)

{

buffer[i] = input[input.Length - 1 - i];

}

string reversed = new string(buffer);

Console.WriteLine(reversed);

Sudarshan Hajare3mo

Method 1: Using ToCharArray() and Array.Reverse()

string str = “hello”;
char[] charArray = str.ToCharArray();
Array.Reverse(charArray);
string reversed = new string(charArray);
Console.WriteLine(reversed); // Output: “olleh”

Method 2: Using LINQ
using System;
using System.Linq;

string str = “world”;
string reversed = new string(str.Reverse().ToArray());
Console.WriteLine(reversed); // Output: “dlrow”

Bipin Kumar1y