IndexedDB API

IndexedDB is a low-level API for client-side storage of significant amounts of structured data, including files/blobs. This API uses indexes to enable high performance searches of this data. While DOM Storage is useful for storing smaller amounts of data, it is less useful for storing larger amounts of structured data. IndexedDB provides a solution. This is the main landing page for MDN’s IndexedDB coverage — here we provide links to the full API reference and usage guides, browser support details, and some explanation of key concepts.

[IndexedDB API]

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Storing Lots of Data on the Client in JavaScript and TypeScript

Peter Vogel. Visual Studio Magazine. 2016-08-30.
IndexedDB allows you to store data on the client to let the user work offline and to reduce demands on the server. Here’s enough code to both get you started and to show you the difference between doing it in JavaScript and doing it in TypeScript.

[Storing Lots of Data on the Client in JavaScript and TypeScript]