KeyValueChangeRecordlink
Record representing the item change information.
属性
| 属性名 | 类型 | 说明 |
|---|---|---|
| key | 只读 Current key in the Map. | |
| currentValue | 只读 Current value for the key or | |
| previousValue | 只读 Previous value for the key or |
Record representing the item change information.
| 属性名 | 类型 | 说明 |
|---|---|---|
| key | 只读 Current key in the Map. | |
| currentValue | 只读 Current value for the key or | |
| previousValue | 只读 Previous value for the key or |
