| 189 | return Query.fromNative(this.native.limitToLast(limit)); |
| 190 | } |
| 191 | off(eventType?: EventType, callback?: (a: DataSnapshot, b: string) => void, context?: Record<string, any>): void { |
| 192 | const handle = callback?.['__fbHandle']; |
| 193 | const event = callback?.['__fbEventType']; |
| 194 | if (handle && event === eventType) { |
| 195 | if (this._handles.has(callback)) { |
| 196 | this.native.removeEventListener(handle as any); |
| 197 | callback['__fbHandle'] = undefined; |
| 198 | callback['__fbEventType'] = undefined; |
| 199 | callback['__fbContext'] = undefined; |
| 200 | this._handles.delete(callback); |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | _handles: Map<(a: DataSnapshot, b: string) => void, com.google.firebase.database.ValueEventListener | com.google.firebase.database.ChildEventListener> = new Map(); |
| 206 | |