Templates are regular pages [[Tags|tagged]] with the `#template` tag. Note that, when tagged inline (by putting `#template` at the beginning of the page), the tag will be removed when the template is instantiated.
1. It will make the page appear when completing template names, e.g. in `render` clauses in [[Live Queries]], or after the `page` key in [[Live Templates]].
2. It excludes the page from being indexed for [[Objects]], that is: any tasks, items, paragraphs etc. will not appear in your space’s object database. Which is usually what you want.
3. It registers your templates to be used as [[Slash Templates]] as well as [[Page Templates]].
## Frontmatter
[[Frontmatter]] has special meaning in templates. The following attributes are used:
*`tags`: should always be set to `template`
*`type` (optional): should be set to `page` for [[Page Templates]]
*`trigger` (optional): defines the slash command name for [[Slash Templates]]
*`displayName` (optional): defines an alternative name to use when e.g. showing the template picker for [[Page Templates]], or when template completing a `render` clause in a [[Live Templates]].
*`pageName` (optional, [[Page Templates]] only): specify a (template for a) page name.
*`frontmatter` (optional): defines [[Frontmatter]] to be added/used in the rendered template. This can either be specified as a string or as an object.
-`{{today}}`: Today’s date in the usual YYYY-MM-DD format
-`{{tomorrow}}`: Tomorrow’s date in the usual YYY-MM-DD format
-`{{yesterday}}`: Yesterday’s date in the usual YYY-MM-DD format
-`{{lastWeek}}`: Current date - 7 days
-`{{nextWeek}}`: Current date + 7 days
-`{{escapeRegexp "hello/there"}}` to escape a regexp, useful when injecting e.g. a page name into a query — think `name =~ /{{escapeRegexp @page.name}}/
`* `{{replaceRegexp string regexp replacement}}`: replace a regular expression in a string, example use: `{{replaceRegexp name "#[^#\d\s\[\]]+\w+" ""}}` to remove hashtags from a task name
-`{{json @page}}` translate any (object) value to JSON, mostly useful for debugging
-`{{substring "my string" 0 3}}` performs a substring operation on the first argument, which in this example would result in `my `
-`{{prefixLines "my string\nanother" " "}}` prefixes each line (except the first) with the given prefix.
-`{{niceDate @page.lastModified}}` translates any timestamp into a “nice” format (e.g. `2023-06-20`).
- The `@page` variable contains all page meta data (`name`, `lastModified`, `contentType`, as well as any custom [[Frontmatter]] attributes). You can address it like so: `{{@page.name}}`