What is the meaning of ?? in c#

//the null-coalescing operator ?? returns the value of its left-hand operand if 
//it isn't null; otherwise, it evaluates the right-hand operand and returns 
//its result.

Similar codes

0 vote134 views1 answer
C# get date without time
C#
0 vote124 views1 answer
C# handle dbnull value
C#
0 vote119 views1 answer
<select name="countries" > <?php while ($row = $result Set->fetch_assoc()) { $country = $roads['country']; echo "<option value='$country'> $country </option>"; } ?> </select>
C#
0 vote127 views1 answer
Cause BSOD C#
C#
13 votes144 views3 answers
C# list get last element
C#
0 vote132 views1 answer
C# caractère cacher mot de passe
C#
0 vote131 views1 answer
C# resize multidimensional array
C#
37 votes278 views3 answers
Debug.log unity
C#Unity
1 vote138 views1 answer
And in c#
C#
18 votes142 views6 answers
Laravel route redirect
C#