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The null coalescing operator is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, such as (in alphabetical order): C# [1] since version 2.0, [2] Dart [3] since version 1.12.0, [4] PHP since version 7.0.0, [5] Perl since version 5.10 as logical defined-or, [6] PowerShell since 7.0.0, [7] and Swift [8] as nil-coalescing operator.
Ternary conditional operator; Null coalescing operators; Safe navigation operators; ... Visual Basic, Fortran, TUTOR (with mandatory indenting of block body), ...
C# 6.0 and above have ?., the null-conditional member access operator (which is also called the Elvis operator by Microsoft and is not to be confused with the general usage of the term Elvis operator, whose equivalent in C# is ??, the null coalescing operator) and ?[], the null-conditional element access operator, which performs a null-safe call of an indexer get accessor.
Null coalescing operators; Safe navigation operators; Modulo operators; Evaluation strategy; List of "Hello World" programs; ... Comparison of C# and Visual Basic .NET;
Ternary conditional operator; Null coalescing operators; Safe navigation operators; Modulo operators; Evaluation strategy; ... Comparison of C# and Visual Basic .NET;
Null coalescing operators; Safe navigation operators; ... Visual Basic .NET Shared Narrowing Operator CType(operand As type) As returntype instructions End Operator:
Ternary conditional operator; Null coalescing operators; Safe navigation operators; Modulo operators; Evaluation strategy; ... Comparison of C# and Visual Basic .NET;
Ternary conditional operator; Null coalescing operators; Safe navigation operators; Modulo operators; Evaluation strategy; ... Comparison of C# and Visual Basic .NET;