Operation, then get notified of the result via a DOM event. IndexedDB works asynchronously - you request a particular database.Doesn't support object lookup via compound index.Windows platform support for IndexedDB is incomplete. There could be differences between the behavior on the Safari and Firefox browsers, The actual behavior may depend on which browser is used. IndexedDB is supported by the underlying WebView on all platforms, with known limitations on the following platforms: IndexedDB provides a simple and easy to understand data model, much like LocalStorage.īut unlike LocalStorage, you can create multiple databases, with multiple stores perĭatabase, and its asynchronous API and search indexes provide performance benefits. It provides some of the benefits of SQL tables, withoutĬonstraining the structure or needing to define it up front. IndexedDB lets you storeĪrbitrary JavaScript objects (provided they are supported by the structured clone algorithm), The goal of the IndexedDB API is to combine the strengths of the LocalStorageĪnd WebSQL APIs, while avoiding their weaknesses. iOS stores localStorage data in a location that may be cleaned out by.Limited total amount of storage (typically around 5MB).Synchronous API means calls will lock up the user interface.Storing large or complex items is slow due to the need to serialize/de-serialize.The lack of indexing means searches require manually iterating all data.Performs poorly with large amounts of data.Only stores strings, so complex data structures have to be serialized,Īnd only data that can be serialized can be stored.Its simple, synchronous API means it is easy to use.removeItem ( key ) // Pass a key name to remove that key from storage. setItem ( key, value ) // Pass a key name and its value to add or update that key. getItem ( key ) // Pass a key name to get its value. See you on the next part to continue building our product stock management app with Ionic 5, Angular and SQLite.Var storage = window. We also added a simple UI with which four Ionic buttons to navigate in our application using Ionic modals. We have installed and configured Cordova SQlite plugin and created required database tables and diffrent pages of our app. $ ionic g page TransactionDetails Conclusion Using Ionic CLI 5 create the following pages: Now, open your terminal under Linux/MAC or command prompt under Windows and run the following command: We'll be using Ionic 5 with Angular and TypeScript which is a superset of JavaScript with OOP concepts and strong types. If this is your first time using Ionic, make sure you first setup your local development environment and install Ionic CLI 5 (The latest version as of this writing). Let's start our journey by generating a blank Ionic 5/Angular app. You can also read how to use Ionic 5 with a SQLite database in the server Starting a New Ionic 5/Angular Project We are also going to see basic Ionic 5/Angular concepts such as components, providers, pages and modals. In this tutorial, we are going to learn how to use the Cordova SQLite plugin to create and populate SQL database tables and how to use the Barcode Cordova plugin to scan product barcodes. It's convenient for demonstarting various features of Ionic 5 that allows you to build real life apps for your clients. Our example app can be used to manage an inventory of products. We'll also make use of Ionic Modals to create our UI. We'll be using the SQLite plugin to persist data and the Barcode scanner plugin for scanning barcodes. In this tutorial, we'll use Ionic 5 and Angular to build a simple mobile application for managing stock products.
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