obsidian-bases

Create a .base file containing valid YAML with a filters section to select notes, an optional formulas section for computed properties, and a views array defining table, cards, list, or map views. Each view uses order to list displayed properties and can add its own filters, grouping, and summaries.

Subtracting two dates returns a Duration type, so access a numeric field like .days before applying number functions. For example, use (date(due_date) - today()).days to get days until a due date, and guard with if(due_date, ...) to handle empty values.

Filters support comparison operators ==, !=, >, <, >=, <= and logical operators &&, ||, and !. Filters can be a single expression string or recursive objects with exactly one key of and, or, or not, and can use file functions like file.hasTag and file.inFolder.

YAML errors usually come from unquoted strings containing special characters like colons or brackets, or from double quotes nested inside double-quoted formulas. Wrap formulas containing double quotes in single quotes, and quote any display string containing special characters.

No, the map view requires latitude and longitude properties on notes and the Maps community plugin installed in Obsidian. Table, cards, and list views work natively without additional plugins.