What is the difference between '==' and '==='?

the only circumstance I've ever seen (and used) === was in PHP.
google PHP comparison operators if that is what you need.

:)

I've common across ?? but never across ===.
AFAIK, this does not exist.

There are several answers to this.

0) The difference is the extra "=" sign. Which one is considered "extra" is up to the observer.

1) The first one ("==") is a valid C# operator, and the 2nd one ("===") is not.

2) You got the tag for this question wrong and intended to specify PHP. That's the only language I've ever seen with the "===" syntax.

"a$ == b$"  TRUE if $a is equal to $b.
"a$ === b$"  TRUE if $a is equal to $b, and they are of the same type. (introduced in PHP 4)

By the way, answer #2 in the list above was easily found with google.

Did you tried to use it ;P ?
If yes, did you succeeded in it, if yes then let us also know how and if you failed then probably there is nothing like it :laugh: .

= = is a comparison operator in C#

but === is a comparison operator in JSP and it stands for is exactly equal to

example of comparison operator == in C# is as follows

using System;
namespace Comparison_operator
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = Console.ReadLine();
            if (name == "radix")
            {
                Console.WriteLine("Hello");
            }
            else
            {
                Console.WriteLine("Unknown user");
            }

        }
    }
}

do rate my answers once u find it useful
Thanks & Regards
Radix :rose:

=== check type and equalty in php

Do you mean "What is the difference between '=' and '==' operators"?
If so, then '=' is an assignment; it makes a variable hold a new value.
For example:

int i = 7;
int j = i * 2;

While '==' is a comparison operator; it evaluates two values, and responds with true if they are the same, or false is they are different:

int i = 7;
if (i == 6)
   {
   thrown new ElementaryMathmaticsNotWorkingException("Seven is the same as six");
   }