When designing a template, the relevant dynamic tags are made available based on context. For example, when you design a Post template, you get access to dynamic tags related to that Post type, Author, User, and Site.
Mods (Modifiers)
When displaying data in your template using dynamic tags, often times you may need to modify it or manipulate it before displaying it.
For example you may need to apply formatting to a plain number and add a currency, or format a date to a formatted date. In other cases, you may need to account what is returned when a dynamic tag is empty.
For example if you are outputting a price, but the price is not available, you could return a fallback text “No price available”
And in more advanced cases, you may need to make math calculations between different dynamic tags and return the output. All of these things are done by utilizing Mods.
