搞懂 Cursor 后，我一行代码都不敲了《进阶篇》

Ambiente desarrollo play-2.2.6

Cursor inside a linux container

The IDBKeyRange interface of the IndexedDB API represents a continuous interval over some data type that is used for keys. Records can be retrieved from IDBObjectStore and IDBIndex objects using keys or a range of keys. You can limit the range using lower and upper bounds. For example, you can iterate over all values of a key in the value range A–Z.