Function frontmatterMatches

frontmatterMatches(
frontmatter: Record<string, unknown> | null | undefined,
filter: Record<string, FrontmatterFilterValue>,
): boolean
v3.10 (rc.10) — does a note's frontmatter satisfy a frontmatter filter?

AND across keys (every key: value pair must match); per-key matching is scalar-equality or array-membership, with OR over an array filter value (see frontmatterValueMatches). A note with NO frontmatter, or missing any filtered key, does NOT match (a filter is a positive assertion — absence ≠ match). Pure
- injectable so it's unit-tested directly without spinning up a vault.
Parameters
- frontmatter: Record<string, unknown> | null | undefined
- filter: Record<string, FrontmatterFilterValue>
Returns boolean
Example
```
frontmatterMatches({ status: "Active", tags: ["proj", "x"] }, { status: "active", tags: "proj" }); // true
frontmatterMatches({ status: "done" }, { status: "active" }); // false
frontmatterMatches(undefined, { status: "active" }); // false (no frontmatter)
```
- Defined in tools/search.ts:1424