--- title: "Expression Parameter" slug: "expression-parameter" updated: 2024-05-04T18:59:37Z published: 2024-05-04T18:59:37Z canonical: "help.mail-and-deploy.com/expression-parameter" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.mail-and-deploy.com/llms.txt > Use this file to discover all available pages before exploring further. # Expression Parameter ### General Some [Expressions](/release34/docs/introduction-to-mail-and-deploy-expressions) have additional parameters that may be used within the expression. This type of placeholder can be used to access one of these parameters. your title goes here > **Example:** [Expressions](/release34/docs/introduction-to-mail-and-deploy-expressions) of style properties of a [Table Style](/release34/docs/table-cell-styles) have a CellValue parameter that contains the value of the cell for which the style property is being evaluated. ### Syntax The syntax for this type of placeholder is: Expression Parameter Placeholder Syntax [] ### Example Let's suppose you write an [Expression](/release34/docs/introduction-to-mail-and-deploy-expressions) for the Font property of a [Table Cell Style](/release34/docs/table-cell-styles); in that context, the CellValue expression parameter is available, which contains the value of the cell for which the style property is being evaluated. An expression could look like this: Expression Parameter Placeholder Example If([CellValue] = "David", "Arial", "Tahoma") If the value of the cell for which the style property is being evaluated equals David, the cell will have the font Arial; otherwise the font Tahoma will be used.