For C, C++ or C# developers, one of the most missed operator in Windows PowerShell v1.0 (current RTM) must have been the ternary operator. This is a shorthand notation (… ? … : … ) typically used to compress if-else loop(s) into one (or more) statement(s).
Jeffrey Snover blogged about this and provided a link to Karl Prosser who contributed this time-saver at the Windows PowerShell team blog. Worth checking out not just for the ?: but also get to learn how to harness advanced PowerShell features!
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