The C# IsNullOrEmpty function is employed to verify if the provided string is either null or an empty string. It delivers a boolean outcome of either true or false.
Signature
Example
public static bool IsNullOrEmpty(String str)
Parameter
The str parameter is utilized to verify a string.
Return
It returns boolean value.
C# String IsNullOrEmpty Method Example
Example
using System;
public class StringExample
{
public static void Main(string[] args)
{
string s1 = "Hello C#";
string s2 = "";
bool b1 = string.IsNullOrEmpty(s1);
bool b2 = string.IsNullOrEmpty(s2);
Console.WriteLine(b1);
Console.WriteLine(b2);
}
}
Output:
Output
False
True
