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Expression Expansion in Strings in Windows PowerShell
What is expression expansion in strings in Windows PowerShell?
✍: FYIcenter.com
Expression expansion in strings is a short-hand of string concatenation operations using the following syntax rule:
When an expression enclosed in parentheses following a $ sign is included in a double-quoted string literal like "... $(expression) ...", it will be replaced with the string representation of the express result.
In other words, the following two expressions are identical:
"Leading text $($a*$b) trailing text." "Leading text "+($a*$b)+" trailing text."
Here are some good examples of using expression expansion in a string:
PS C:\fyicenter> Write-Host "Current time is $( (Get-Date).TimeOfDay )." Current time is 19:16:33.4997682. PS C:\fyicenter> "Firefox virtual memory size = $( (Get-Process Firefox).VirtualMemorySize)." Firefox virtual memory size = 1175629824.
⇒ String Comparison in Windows PowerShell
⇐ Variable Expansion in Strings in Windows PowerShell
2016-10-19, 1542🔥, 0💬
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