🖥 TECH >> Applying pagination in IndexedDB data read

Data can be read in a paginated form from IDB using IDB cursors. One can leverage the advance() of IDBCursor to efficiently advance to the page indices. Here’s the sample code.

For a startIndex(10) and stopIndex(25) , the code will return data from the store starting from key index 10 to 25. Note that for the very beginning, i.e for startIndex = 1, no cursor advancement is made.

cursor.advance(startIndex — 1 );
Since, the cursor initially points to the first element, the advanced index is reduced by 1 for arithmetic equality.