IDBObjectStorecreateIndex

The IDBObjectStore interface represents an object store in an IndexedDB database. Object stores are the fundamental building blocks of IndexedDB, analogous to tables in relational databases. Each object store holds a collection of JavaScript objects, which are stored as records.

An IDBObjectStore can be created using the createObjectStore method of the IDBDatabase interface. When creating an object store, you can specify a key path, which defines a property within the stored objects that will be used as the key. Alternatively, you can let IndexedDB automatically generate keys.

Key operations on an IDBObjectStore include adding, retrieving, updating, and deleting records. These operations are performed using methods like add(), get(), put(), and delete(). Each operation returns an IDBRequest object, which allows you to track the status of the operation and handle its outcome through event listeners for success and error events.

Object stores can also define indexes, which are specialized object stores that facilitate efficient querying of records based on values in specific properties. Indexes are created using the createIndex method of the IDBObjectStore.

The IDBObjectStore interface provides methods to access these indexes and to iterate over the records within the object store. It is a core component for interacting with and managing data within an IndexedDB database.