$PSItem was added to PowerShell in an attempt to provide a clearer meaning to the variable name. However, in practice, the dollar sign underscore form $_ is most commonly used.

Jan 29, 2026 · Learn how to manage Microsoft Fabric variable libraries to customize and share item configurations in a workspace.

When you use a variable in a template that isn't marked as available in templates, the variable doesn't render. The variable doesn't render because its value isn't accessible within the template's scope.

The New-Variable cmdlet creates a new variable in PowerShell. You can assign a value to the variable while creating it or assign or change the value after it is created.

Jan 14, 2026 · The recommended ways to set secret variables are in the UI, in a variable group, and in a variable group from Azure Key Vault. You can also set secret variables in a script with a logging …

The Set-Variable cmdlet assigns a value to a specified variable or changes the current value. If the variable does not exist, the cmdlet creates it.

Oct 4, 2025 · In the Variable properties panel, you can rename a variable, see where your agent uses it, or convert it to a global variable. You can't convert a global variable back to a topic variable, however.

Jan 9, 2026 · Variables that are defined as expressions shouldn't depend on another variable with expression in value since it isn't guaranteed that both expressions will be evaluated properly. For …

Use data in your applications by creating literal values and variable values of different data types.

Mar 30, 2022 · Use the Dim statement at the module or procedure level to declare the data type of a variable. For example, the following statement declares a variable as an Integer.