Template:Plus if pos

Adds a plus sign in front of a number if it's positive. Example:

{{plus if positive | 5 }}

Result:

Template:Plus if positive

This is useful when calculating some modifier. For example:

{{hidden code|

{{#lvardef: dex | 14 }}
{{#lvardef: dex_mod | {{plus if positive | {{#expr: floor({{#lvar:dex}} / 2) - 5 }} }} }}

}}

Your Dexterity Modifier is: {{#lvar:dex_mod}}

Result:

Your Dexterity Modifier is: Template:Plus if positive

(Note: Don't be confused by use of Template:Hidden code in the example; it's an unrelated trick for using variable definitions without causing empty paragraphs.)