What is IndexedDB and how can I use it in my web applications?

What is IndexedDB and how can I use it in my web applications?

IndexedDB is a low-level API for client-side storage of significant amounts of structured data, including files/blobs. You can use it to store data that your web application needs to function offline or to improve performance by caching data.

Can you give me an example of how to create a database using IndexedDB?

Sure! To create a database, you can use the indexedDB.open() method. Here's a simple example:

let request = indexedDB.open('myDatabase', 1);

request.onupgradeneeded = function(event) {
    let db = event.target.result;
    db.createObjectStore('myObjectStore', { keyPath: 'id' });
};

request.onsuccess = function(event) {
    console.log('Database created successfully!');
};

request.onerror = function(event) {
    console.error('Database error: ' + event.target.errorCode);
};

What are some common use cases for IndexedDB?

Common use cases include storing user preferences, caching application data for offline access, and managing large datasets that need to be queried efficiently.