Below are list of Latest Ionic framework interview questions and answers for beginners and experienced
Ionic is a Cordova or PhoneGap based framework that allows you to build cross-platform applications for android, ios and windows or basically any other platform that PhoneGap supports.It is 100% free and open source project, licensed under MIT.Ionic allows developers to build beautiful and interactive mobile application using HTML5 and AngularJS.Ionic supports over 120 native device features like Bluetooth, HealthKit, Finger Print Auth, and more with Cordova/PhoneGap plugins and TypeScript extensions.
PhoneGap is an Adobe product. It is powered by Cordova.
Ionic was developed by Max Lynch, Ben Sperry, and Adam Bradley of Drifty co. It was developed in 2013. It is open source software which is used for hybrid mobile app development. It is built on Angular JS and Apache Cordova. Ionic is a collection of Angular.js, UI Router, Angular directive, Angular services, JS utilities, and mobile-focused CSS styles.
You can get installed version of Ionic framework by running ionic.version in console of your web browser.
A chain of polymerization where active centers are ions is known as ionic polymerization. The ions may be anions or cations.
In free-radical polymerization, the building blocks are the free radicals which form polymer chains.
Here goes a list of some popular applications built with the help of ionic framework: –
Services play an important role in Ionic framework as they provide information to our application and perform various tasks for us. ConnectivityMonitor, SimpleAlert, data, GoogleMaps, etc. are some of the services which are built in ionic framework. There are few concepts which are to be kept in mind while creating a service. Importing a service, adding a provider to it, and injecting it is the most important thing. The services should be imported in the classes where they are to be used. When it is injected inside a constructor, a new member variable is created which can be accessed from anywhere within the class. A provider can be added in a service by two ways. Either it can be added to an individual component, or it can be added globally to the application when bootstrapping the root component.
The easy way to store key or values and JSON objects is known as storage in Ionic Framework. In this various storage, engines are used. While on the web application, the storage will tend to use IndexedDB, WebSQL, and localstorage. Various types of storage are available in ionic framework. Some of them are -
Everything has some pros and cons.
Some advantages and disadvantages of ionic framework are listed below: -Advantages:
There is a reason why ionic2 framework is better than the ionic1 framework. Here are some features which were included in the ionic2 framework when it was being developed.
Ionic currently requires Angular JS in order to work as its full potential. The current stable version of the ionic framework is ionic 3.0. It was released on 24th February, 2017. It helps you build native-feeling mobile applications using web technologies. It mainly focuses on the look and feel, and the user interface of your application.
Observables are something that are not specific to Ionic or Angular and are provided by the RxJS library. Observables are almost similar to the promises but can do a lot more. It can deal with multiple values at a time rather than just resolving one value. You can even subscribe to an observable to manipulate the data which is associated with it. Observables are considered to be "lazy", i.e. they won't get executed until and unless they are subscribed to. Various operations can be applied to the observables for modifying it and returning a new one. You can even create your own observable. The observable patterns are combined into one with the help of subject which is preferred for simple implementations.