Interview Questions

AJAX Interview Questions Android Interview Questions Angular 2 Interview Questions AngularJs Interview Questions Apache Presto Interview Questions Apache Tapestry Interview Questions Arduino Interview Questions ASP.NET MVC Interview Questions Aurelia Interview Questions AWS Interview Questions Blockchain Interview Questions Bootstrap Interview Questions C Interview Questions C Programming Coding Interview Questions C# Interview Questions C++ Interview Questions Cakephp Interview Questions Cassandra Interview Questions CherryPy Interview Questions Clojure Interview Questions Cobol Interview Questions CodeIgniter interview Questions CoffeeScript Interview Questions Cordova Interview Questions CouchDB interview questions CSS Buttons Interview Questions CSS Interview Questions D Programming Language Interview Questions Dart Programming Language Interview Questions Data structure & Algorithm Interview Questions DB2 Interview Questions DBMS Interview Questions Django Interview Questions Docker Interview Questions DOJO Interview Questions Drupal Interview Questions Electron Interview Questions Elixir Interview Questions Erlang Interview Questions ES6 Interview Questions and Answers Euphoria Interview Questions ExpressJS Interview Questions Ext Js Interview Questions F# Interview Questions Firebase Interview Questions Flask Interview Questions Flex Interview Questions Fortran Interview Questions Foundation Interview Questions Framework7 Interview Questions FuelPHP Framework Interview Questions Go Programming Language Interview Questions Google Maps Interview Questions Groovy interview Questions GWT Interview Questions Hadoop Interview Questions Haskell Interview Questions Highcharts Interview Questions HTML Interview Questions HTTP Interview Questions Ionic Interview Questions iOS Interview Questions IoT Interview Questions Java BeanUtils Interview Questions Java Collections Interview Questions Java Interview Questions Java JDBC Interview Questions Java Multithreading Interview Questions Java OOPS Interview Questions Java Programming Coding Interview Questions Java Swing Interview Questions JavaFX Interview Questions JavaScript Interview Questions JCL (Job Control Language) Interview Questions Joomla Interview Questions jQuery Interview Questions js Interview Questions JSF Interview Questions JSP Interview Questions KnockoutJS Interview Questions Koa Interview Questions Laravel Interview Questions Less Interview Questions LISP Interview Questions Magento Interview Questions MariaDB Interview Questions Material Design Lite Interview Questions Materialize CSS Framework Interview Questions MathML Interview Questions MATLAB Interview Questions Meteor Interview Questions MongoDB interview Questions Moo Tools Interview Questions MySQL Interview Questions NodeJS Interview Questions OpenStack Interview Questions Oracle DBA Interview Questions Pascal Interview Questions Perl interview questions Phalcon Framework Interview Questions PhantomJS Interview Questions PhoneGap Interview Questions Php Interview Questions PL/SQL Interview Questions PostgreSQL Interview Questions PouchDB Interview Questions Prototype Interview Questions Pure CSS Interview Questions Python Interview Questions R programming Language Interview Questions React Native Interview Questions ReactJS Interview Questions RequireJs Interview Questions RESTful Web Services Interview Questions RPA Interview Questions Ruby Interview Questions Ruby on Rails Interview Questions SAS Interview Questions SASS Interview Questions Scala Interview Questions Sencha Touch Interview Questions SEO Interview Questions Servlet Interview Questions SQL Interview Questions SQL Server Interview Questions SQLite Interview Questions Struts Interview Questions SVG Interview Questions Swift Interview Questions Symfony PHP Framework Interview Questions T-SQL(Transact-SQL) Interview Questions TurboGears Framework Interview Questions TypeScript Interview Questions UiPath Interview Questions VB Script Interview Questions VBA Interview Questions WCF Interview Questions Web icon Interview Questions Web Service Interview Questions Web2py Framework Interview Questions WebGL Interview Questions Website Development Interview Questions WordPress Interview Questions Xamarin Interview Questions XHTML Interview Questions XML Interview Questions XSL Interview Questions Yii PHP Framework Interview Questions Zend Framework Interview Questions

Top 15 Electron Interview Question for 2020

1) What is Electron?

Electron is an open source library developed by Github. It is used to develop cross platform desktop application.

2) Which technology Electron uses?

Electron uses Chromium and Node.js with HTML, CSS and JavaScript.

3) How Chromium and Node.js are used in Electron?

Chromium is a Webkit, based web browser with V8 JavaScript engine which support all the browser and DOM APIs. It is good for making web page. Node.js keeps backend code's JavaScript state separate from frontend application windows state.

4) What are the different types of process in Electron?

There are two types of process in Electron. These are main process and renderer process. Main process is responsible for interacting with native graphical user interface (GUI) of operating system. I also respond for auto-update of events and managing BrowserWindow instances. Randerer process is responsible for running the user interface of your application by using HTML files, CSS files, JavaScript files etc.

5) What is Inter Process Communication (IPC)?

Inter Process Communication module is mechanism which allows exchange of synchronous and asynchronous message between main and renderer process. ipcMain module communication takes from main process to renderer process and ipcRenderer module communication takes from renderer process to main process.

6) How could we build user interface in Electron?

User Interface of Electron is built by using HTML, CSS, and JavaScript.

7) What are environment variables in Electron?

Environment variables control configuration (behavior) of Electron application without changing code. There are two types of environment variables in Electron.
Production variable
Development variable

8) What is webview in electron?

Webview is a tag which is used to embed web page in electron app. It runs in a separate process and interacts asynchronously between app and embedded content.

9) Tell me about packaging apps.

Packaging is an electron app, simply refers to creating a desktop installer. Packaging and distributing apps is an integral part of the development process. These can be done by using:
Electron-packager.
Electron-builder.

10) How debugging done in electron?

Debugging is a set of steps that involves identifying the problem, source of problem then resolving the problem to work application successfully. In electron, app are run over main process and rendered process debugging applied on both processes. The DevTools in an Electron browser window can only debug JavaScript that is execute in that web pages. It uses external debugger and launch Electron with commands –debug or --debug-brk, --inspect or inspect-brk. Chrome Devtools are use to debug renderer process as it executed in browser window.

11) What are different types of menu?

There are two type of menus are created in electron desktop apps.
  1. application menu
  2. context menu.
Application menu are those which display on top bar and context menu display on right-click.

12) Tell me something about System Tray.

System tray represents an icon in an operating system's notification area in other word we can say that system tray is a menu outside of your application window.

13) How dose notification is created in electron?

Notification is created by using npm module called node-notifier used to notify users in Windows, Linux and MacOS. Electron also provides native notifications API only for MacOS. node-notifier module is install by using command $ npm install –save node-notifier

14) How electron works?

Electron work by taking main file created in your package.json file and executes it. The main file creates application windows contains rendered web pages and interact with native GUI. The main process is created when you start your application. Main process manage BrowserWindow module (provide ability to create new application windows in your app) and each browser module runs its own renderer process.

15) What is the structure of an Electron application?

The basic structure of electron application consists of three files: package.json, main.js and index.html. Package.json used for metadata, main.js for code and index.html for graphical user interface.



ADVERTISEMENT
ADVERTISEMENT