Write-Host "Variable has a value" } Explanation: The function IsNullOrDbNull takes a mandatory parameter $Value. It checks if $Value is null using -eq operator or if it is equal to DBNULL using [System.DBNull]::Value.Equals($Value). $myVar = $null is used to assign $null to $my...
You can also assign $null value explicitly to a variable as shown below. Code: $val = $null Write-Output "The value is : $val" Output: Many times when writing a script we need to spot if the value is Null but it doesn’t visible in the console. To spot if the variable is going...
Get-MgUser-SelectId,DisplayName,Mail,UserPrincipalName,UsageLocation,UserType | where {$_.UsageLocation-eq$null-and$_.UserType-eq'Member'} 若要在帳戶上設定UsageLocation值,請執行此命令。 PowerShell $userUPN="<user sign-in name (UPN)>"$userLoc="<ISO 3166-1 alpha-2 country code>"...
Assignment operators assign one or more values to a variable. The equals sign (=) is the PowerShell assignment operator. PowerShell also has the following compound assignment operators: +=, -=, *=, %=, ++, --, ??=. Compound assignment operators perform operations on the values before t...
PS C:\> AssignValueToParam $name inside function: WangLei PS C:\> Write-Host "outside function: $name" outside function: LiMing新创建的变量会在当前作用域中覆盖之前传递的参数,原参数值不变,为改变传递到函数中的参数值,可以使用Get-Variable和Set-Variable在复杂的作用域间更改变量值。下例创建的函...
Get-MgUser -Select Id,DisplayName,Mail,UserPrincipalName,UsageLocation,UserType | where { $_.UsageLocation -eq $null -and $_.UserType -eq 'Member' } 若要设置帐户的 UsageLocation 值,请运行此命令。PowerShell 复制 $userUPN="<user sign-in name (UPN)>" $userLoc="<ISO 3166-1...
Use assignment operators (=,+=,-=,*=,/=,%=) to assign, change, or append values to variables. You can combine arithmetic operators with assignment to assign the result of the arithmetic operation to a variable. For more information, seeabout_Assignment_Operators. ...
You can also assign aBooleanvalue to a switch when you run the function, as shown in the following example: PowerShell Switch-Item-On:$true Output Switch on PowerShell Switch-Item-On:$false Output Switch off Use splatting to pass parameter values ...
The new??=null conditional assignment operator makes it easy to assign a variable a value only if the variable value is $null. New PowerShell version notification Our telemetry available in ourPowerBI Dashboardindicates some set of users are still using older versions (sometimes older previews of...
Saving the output in a variable We know that scripts executed withMeasure-Objectruns in the current scope. So we could assign the result to a variable, and work with it. Copy $range=1..100$evenCount=0$scriptBlock= {foreach($numberin$range) {if($number%2-eq0) {$evenCount++ ...