Interface IDBKeyRange
interface IDBKeyRange {
lower: any;
lowerOpen: boolean;
upper: any;
upperOpen: boolean;
includes(key: any): boolean;
}
lower: any;
lowerOpen: boolean;
upper: any;
upperOpen: boolean;
includes(key: any): boolean;
}
Properties
Readonlylower
lower: any
Returns lower bound, or undefined if none.
ReadonlylowerOpen
lowerOpen : boolean
Returns true if the lower open flag is set, and false otherwise.
Readonlyupper
upper: any
Returns upper bound, or undefined if none.
ReadonlyupperOpen
upperOpen : boolean
Returns true if the upper open flag is set, and false otherwise.
A key range can be a single value or a range with upper and lower bounds or endpoints. If the key range has both upper and lower bounds, then it is bounded; if it has no bounds, it is unbounded. A bounded key range can either be open (the endpoints are excluded) or closed (the endpoints are included). To retrieve all keys within a certain range, you can use the following code constructs:
MDN Reference