Retrieve Data of an Index from Object Store Using Cursor
Explore how to retrieve data efficiently from an IndexedDB object store using index and cursor methods. This lesson guides you through opening database connections, creating read-only transactions, accessing indexes, and looping through cursors to fetch targeted data, demonstrated with a student class example.
We'll cover the following...
We'll cover the following...
As discussed earlier, index in IndexedDB allows us to retrieve data from an object store more efficiently than simply iterating over all the records in the object store. An index is a data structure that keeps track of the keys of the records in an object store. We can use an index to quickly find records that match a specific key or range of keys.