And-and-or-have-same-precedence

Operators -and and -or have the same precedence

Logical operators -and and -or have the same precedence, unlike in other programming languages where logical AND has higher precedence.

This C# expression is evaluated to true

    true || true && false

This similar PowerShell expression is evaluated to false

    $true -or $true -and $false

To avoid this trap, especially on translating code from other languages to PowerShell, use parenthesis

    $true -or ($true -and $false)

Scripts

• Test-CSharp.ps1 tests the above C# expression.
• Test-PowerShell.ps1 tests the similar PowerShell expression, the result is different.

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• Operators-with-equal-precedence
• Microsoft Connect 285170