Overview of IndexedDB
An IndexedDB database might be different than the type of database that you normally use. An IndexedDB database is an object-oriented database and not a relational database. Instead of storing data in tables, you store data in object stores. An IndexedDB database contains one or more object stores that contain a collection of JavaScript objects.
The IndexedDB API includes both asynchronous and synchronous methods. Currently, only the asynchronous methods are widely supported by browsers. If you want to open a database connection, add an object to an object store, or get a count of items in an object store, then you need to perform these operations asynchronously.
Creating or Connecting to an IndexedDB Database
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