Interface: KeyedFold

Defined in: src/lib/time-travel/keyedFold.ts:115

One key's value at one commit — the question, and the answers already computed for it.

Properties

basis

readonly basis: FoldBasis

Defined in: src/lib/time-travel/keyedFold.ts:117

How this fold was derived — see FoldBasis.

---

length

readonly length: number

Defined in: src/lib/time-travel/keyedFold.ts:119

How many bundles the log holds.

Methods

valueAt()

valueAt(key, idx): unknown

Defined in: src/lib/time-travel/keyedFold.ts:131

The value of key folded through commit ARRAY INDEX idx, inclusive. -1 (or lower) folds nothing and returns the base's value — the state before the log's first commit.

DEEP-FROZEN, and the same object on every call for the same question. It is detached from the engine's own bundles AND unmutable, so a caller cannot rewrite what a later index folds to — keyedFold.ts · freezeDeep says why that is a law here rather than a courtesy. Copy it (structuredClone, a spread) if you need something to edit.

Parameters

key

string

idx

number

Returns

unknown