Function commit

packages/effect/src/internal/core.ts:1996–1998

()

    [FiberRefTypeId]: fiberRefVariance,
    initial,
    commit() {
      return fiberRefGet(this)
    },
    diff: (oldValue: Value, newValue: Value) => options.differ.diff(oldValue, newValue),
    combine: (first: Patch, second: Patch) => options.differ.combine(first, second),
    patch: (patch: Patch) => (oldValue: Value) => options.differ.patch(patch, oldValue),