Ionic handles offline storage primarily through the use of local storage, IndexedDB, and WebSQL databases. These technologies allow developers to store data on the client-side, enabling the application to function offline or with intermittent connectivity.
Local Storage: This is a simple key-value storage system provided by the browser. It's suitable for small amounts of data. For example, you might use local storage to save a user's preferences or settings.
IndexedDB: This is a more robust client-side storage system that allows for structured data storage and complex queries. It's useful for applications that need to store larger amounts of data or require more advanced data manipulation capabilities. For instance, a task management app might use IndexedDB to store tasks, deadlines, and priorities.
WebSQL: Although not part of the HTML5 standard, WebSQL is supported by some browsers and provides a SQL-based interface for storing data. It's a good choice for applications that are already using SQL databases on the server side and want to maintain a similar data model on the client side.
For developers looking to leverage these capabilities in a cloud-native environment, Tencent Cloud offers services like Tencent Cloud Database (TDSQL-C) for scalable and reliable database solutions, and Tencent Cloud Storage for storing and retrieving any amount of data at any time from anywhere on the web. These services can complement Ionic's offline storage capabilities by providing a robust backend infrastructure for data synchronization and management when the application comes back online.