KeyRange constrains a query or cursor by lower and upper bounds. Bounds are full IndexedDB keys (scalar or array), matching W3C IDBKeyRange. An absent lower/upper means unbounded on that side. https://www.w3.org/TR/IndexedDB/#keyrange
Optional
KeyRange constrains a query or cursor by lower and upper bounds. Bounds are full IndexedDB keys (scalar or array), matching W3C IDBKeyRange. An absent lower/upper means unbounded on that side. https://www.w3.org/TR/IndexedDB/#keyrange