Prepare Interview

Mock Exams

Make Homepage

Bookmark this page

Subscribe Email Address
Withoutbook LIVE Mock Interviews

Freshers / Beginner level questions & answers

Ques 1. What is Electron.js?

Electron.js is an open-source framework developed by GitHub for building cross-platform desktop applications with web technologies like HTML, CSS, and JavaScript.

Is it helpful? Add Comment View Comments
 

Ques 2. How can you disable the Electron security warnings?

Electron displays security warnings in the developer console. These warnings can be disabled by setting the 'ELECTRON_DISABLE_SECURITY_WARNINGS' environment variable or using the 'app.commandLine.appendSwitch' method in the main process.

Is it helpful? Add Comment View Comments
 

Intermediate / 1 to 5 years experienced level questions & answers

Ques 3. Explain the main process and renderer process in Electron.

The main process manages the lifecycle of the application and creates web pages using renderer processes. Renderer processes are responsible for rendering the UI and run in separate instances for each opened window.

Is it helpful? Add Comment View Comments
 

Ques 4. How can you communicate between the main process and renderer process in Electron?

Inter-process communication (IPC) is used to communicate between the main process and renderer processes. Electron provides modules like 'ipcMain' and 'ipcRenderer' for sending and receiving messages.

Is it helpful? Add Comment View Comments
 

Ques 5. Explain Electron's 'Main' and 'Renderer' threads.

The 'Main' thread manages the Electron application and runs the main script. The 'Renderer' thread runs the web page content and is responsible for rendering the UI. Each Electron window has its own 'Renderer' thread.

Is it helpful? Add Comment View Comments
 

Ques 6. Explain the Electron app life cycle events.

Electron apps have several life cycle events, including 'ready', 'window-all-closed', 'before-quit', 'will-quit', and 'quit'. These events help manage the initialization, window creation, and quitting processes.

Is it helpful? Add Comment View Comments
 

Ques 7. How can you package an Electron application?

Electron applications can be packaged using tools like 'electron-builder' or 'electron-packager'. These tools allow you to package the app for different platforms and architectures.

Is it helpful? Add Comment View Comments
 

Ques 8. What is Electron's 'remote' module used for?

The 'remote' module enables communication and interaction between the main process and renderer processes by allowing objects to be used across processes. It provides a way to access objects from the main process in the renderer process.

Is it helpful? Add Comment View Comments
 

Ques 9. What is the purpose of the 'BrowserWindow' module in Electron?

'BrowserWindow' is used to create and control browser windows in Electron. It allows you to customize window properties, handle events, and control window behavior.

Is it helpful? Add Comment View Comments
 

Ques 10. Explain the concept of 'Electron Prebuilt' and 'Electron' packages.

'Electron Prebuilt' and 'Electron' packages are npm packages that provide Electron binaries. 'Electron Prebuilt' is an older version, while 'Electron' provides the latest stable release. Developers can use these packages to run Electron apps without having to manually install Electron globally.

Is it helpful? Add Comment View Comments
 

Ques 11. How can you handle menu creation in Electron?

Menus in Electron can be created using the 'Menu' module. You can define menu items, submenus, and their functionality. Menus can be attached to specific windows or the application as a whole.

Is it helpful? Add Comment View Comments
 

Ques 12. How can you handle file dialogs in Electron?

Electron provides the 'dialog' module for handling file dialogs. Developers can use methods like 'showOpenDialog' and 'showSaveDialog' to display file selection and save dialogs, respectively.

Is it helpful? Add Comment View Comments
 

Ques 13. How does Electron support multi-window applications?

Electron enables the creation of multiple windows in an application. Each window runs in its own renderer process, providing isolation. Developers can manage these windows using the 'BrowserWindow' module.

Is it helpful? Add Comment View Comments
 

Ques 14. What is the purpose of 'app.on('will-quit', callback)' in Electron?

The 'will-quit' event is emitted before the application is about to quit. Developers can use this event to perform cleanup tasks or prevent the application from quitting by calling 'event.preventDefault()'.

Is it helpful? Add Comment View Comments
 

Ques 15. Explain the 'webPreferences' option in the 'BrowserWindow' module.

The 'webPreferences' option allows developers to configure various preferences for the web page content, including enabling Node.js integration, setting the preload script, and controlling context isolation.

Is it helpful? Add Comment View Comments
 

Ques 16. What is the purpose of the 'globalShortcut' module in Electron?

The 'globalShortcut' module is used to register and unregister global keyboard shortcuts in Electron. It allows developers to define custom key combinations that trigger specific actions in the application.

Is it helpful? Add Comment View Comments
 

Ques 17. How can you access command-line arguments in an Electron app?

Command-line arguments can be accessed using the 'process.argv' array in the main process. The 'remote' module can be used in the renderer process to access command-line arguments from the main process.

Is it helpful? Add Comment View Comments
 

Experienced / Expert level questions & answers

Ques 18. What is the purpose of the 'preload' script in Electron?

The 'preload' script is a JavaScript file specified in the Electron BrowserWindow options. It runs in the renderer process and has access to Node.js APIs before the DOM content is loaded. It allows customization of the environment for the renderer process.

Is it helpful? Add Comment View Comments
 

Ques 19. Explain the role of 'webContents' in Electron.

'webContents' is an Electron module that represents the web page content in a window. It allows you to control and manipulate the content, handle events, and execute scripts in the renderer process.

Is it helpful? Add Comment View Comments
 

Ques 20. What is Electron's 'autoUpdater' module used for?

The 'autoUpdater' module is used to enable automatic updates for Electron applications. It allows apps to check for updates and download new versions from a server.

Is it helpful? Add Comment View Comments
 

Ques 21. Explain how Electron handles security and sandboxing.

Electron uses the Chromium browser, which employs a multi-process architecture with a main process and renderer processes. Each renderer process is sandboxed to enhance security, preventing direct access to Node.js modules and system resources.

Is it helpful? Add Comment View Comments
 

Ques 22. What is the 'contextIsolation' option in Electron and why is it used?

The 'contextIsolation' option, when set to true, isolates the renderer processes by running JavaScript code in a separate context. This enhances security by preventing the renderer processes from directly accessing the 'require' function and other Node.js modules.

Is it helpful? Add Comment View Comments
 

Ques 23. Explain the role of the 'BrowserView' module in Electron.

'BrowserView' is used to embed web content within a window in Electron. It allows developers to create separate views within a single window, each with its own 'webContents' and lifecycle.

Is it helpful? Add Comment View Comments
 

Ques 24. Explain the purpose of the 'session' module in Electron.

The 'session' module allows developers to customize the behavior of the Electron session, such as configuring HTTP headers, handling cookies, and managing browser sessions. It provides methods to intercept requests and responses.

Is it helpful? Add Comment View Comments
 

Most helpful rated by users:

Related interview subjects

JCL interview questions and answers - Total 20 questions
JavaScript interview questions and answers - Total 59 questions
Ajax interview questions and answers - Total 58 questions
Express.js interview questions and answers - Total 30 questions
Ansible interview questions and answers - Total 30 questions
ES6 interview questions and answers - Total 30 questions
Electron.js interview questions and answers - Total 24 questions
RxJS interview questions and answers - Total 29 questions
NodeJS interview questions and answers - Total 30 questions
jQuery interview questions and answers - Total 22 questions
ExtJS interview questions and answers - Total 50 questions
Vue.js interview questions and answers - Total 30 questions
Svelte.js interview questions and answers - Total 30 questions
Shell Scripting interview questions and answers - Total 50 questions
Next.js interview questions and answers - Total 30 questions
TypeScript interview questions and answers - Total 38 questions
Knockout JS interview questions and answers - Total 25 questions
PowerShell interview questions and answers - Total 27 questions
Terraform interview questions and answers - Total 30 questions

All interview subjects

ASP interview questions and answers - Total 82 questions
C# interview questions and answers - Total 41 questions
LINQ interview questions and answers - Total 20 questions
ASP .NET interview questions and answers - Total 31 questions
Microsoft .NET interview questions and answers - Total 60 questions
Artificial Intelligence (AI) interview questions and answers - Total 47 questions
Machine Learning interview questions and answers - Total 30 questions
ChatGPT interview questions and answers - Total 20 questions
NLP interview questions and answers - Total 30 questions
OpenCV interview questions and answers - Total 36 questions
TensorFlow interview questions and answers - Total 30 questions
R Language interview questions and answers - Total 30 questions
COBOL interview questions and answers - Total 50 questions
Python Coding interview questions and answers - Total 20 questions
Scala interview questions and answers - Total 48 questions
Swift interview questions and answers - Total 49 questions
Golang interview questions and answers - Total 30 questions
Embedded C interview questions and answers - Total 30 questions
C++ interview questions and answers - Total 142 questions
VBA interview questions and answers - Total 30 questions
CCNA interview questions and answers - Total 40 questions
Snowflake interview questions and answers - Total 30 questions
Oracle APEX interview questions and answers - Total 23 questions
AWS interview questions and answers - Total 87 questions
Microsoft Azure interview questions and answers - Total 35 questions
Azure Data Factory interview questions and answers - Total 30 questions
OpenStack interview questions and answers - Total 30 questions
ServiceNow interview questions and answers - Total 30 questions
GDPR interview questions and answers - Total 30 questions
CCPA interview questions and answers - Total 20 questions
HITRUST interview questions and answers - Total 20 questions
LGPD interview questions and answers - Total 20 questions
PDPA interview questions and answers - Total 20 questions
OSHA interview questions and answers - Total 20 questions
HIPPA interview questions and answers - Total 20 questions
PHIPA interview questions and answers - Total 20 questions
FERPA interview questions and answers - Total 20 questions
DPDP interview questions and answers - Total 30 questions
PIPEDA interview questions and answers - Total 20 questions
Operating System interview questions and answers - Total 22 questions
MS Word interview questions and answers - Total 50 questions
Tips and Tricks interview questions and answers - Total 30 questions
PoowerPoint interview questions and answers - Total 50 questions
Data Structures interview questions and answers - Total 49 questions
Computer Networking interview questions and answers - Total 65 questions
Microsoft Excel interview questions and answers - Total 37 questions
Computer Basics interview questions and answers - Total 62 questions
Computer Science interview questions and answers - Total 50 questions
Python Pandas interview questions and answers - Total 48 questions
Django interview questions and answers - Total 50 questions
Python Matplotlib interview questions and answers - Total 30 questions
Pandas interview questions and answers - Total 30 questions
Deep Learning interview questions and answers - Total 29 questions
Flask interview questions and answers - Total 40 questions
PySpark interview questions and answers - Total 30 questions
PyTorch interview questions and answers - Total 25 questions
Data Science interview questions and answers - Total 23 questions
SciPy interview questions and answers - Total 30 questions
Generative AI interview questions and answers - Total 30 questions
NumPy interview questions and answers - Total 30 questions
Python interview questions and answers - Total 106 questions
Oracle interview questions and answers - Total 34 questions
MongoDB interview questions and answers - Total 27 questions
AWS DynamoDB interview questions and answers - Total 46 questions
Entity Framework interview questions and answers - Total 46 questions
MySQL interview questions and answers - Total 108 questions
Redis Cache interview questions and answers - Total 20 questions
Data Modeling interview questions and answers - Total 30 questions
DBMS interview questions and answers - Total 73 questions
MariaDB interview questions and answers - Total 40 questions
Apache Hive interview questions and answers - Total 30 questions
PostgreSQL interview questions and answers - Total 30 questions
SSIS interview questions and answers - Total 30 questions
SQLite interview questions and answers - Total 53 questions
Teradata interview questions and answers - Total 20 questions
SQL Query interview questions and answers - Total 70 questions
Cassandra interview questions and answers - Total 25 questions
Neo4j interview questions and answers - Total 44 questions
MSSQL interview questions and answers - Total 50 questions
OrientDB interview questions and answers - Total 46 questions
SQL interview questions and answers - Total 152 questions
Data Warehouse interview questions and answers - Total 20 questions
IBM DB2 interview questions and answers - Total 40 questions
Elasticsearch interview questions and answers - Total 61 questions
Data Mining interview questions and answers - Total 30 questions
Digital Electronics interview questions and answers - Total 38 questions
Software Engineering interview questions and answers - Total 27 questions
MATLAB interview questions and answers - Total 25 questions
VLSI interview questions and answers - Total 30 questions
Civil Engineering interview questions and answers - Total 30 questions
Electrical Machines interview questions and answers - Total 29 questions
Data Engineer interview questions and answers - Total 30 questions
Robotics interview questions and answers - Total 28 questions
AutoCAD interview questions and answers - Total 30 questions
Power System interview questions and answers - Total 28 questions
Electrical Engineering interview questions and answers - Total 30 questions
Verilog interview questions and answers - Total 30 questions
TIBCO interview questions and answers - Total 30 questions
Informatica interview questions and answers - Total 48 questions
Oracle CXUnity interview questions and answers - Total 29 questions
Web Services interview questions and answers - Total 10 questions
Salesforce Lightning interview questions and answers - Total 30 questions
Power BI interview questions and answers - Total 24 questions
IBM Integration Bus interview questions and answers - Total 30 questions
OIC interview questions and answers - Total 30 questions
Web API interview questions and answers - Total 31 questions
Dell Boomi interview questions and answers - Total 30 questions
Salesforce interview questions and answers - Total 57 questions
IBM DataStage interview questions and answers - Total 20 questions
Talend interview questions and answers - Total 34 questions
Java 15 interview questions and answers - Total 16 questions
Core Java interview questions and answers - Total 306 questions
Apache Wicket interview questions and answers - Total 26 questions
Java Multithreading interview questions and answers - Total 30 questions
JBoss interview questions and answers - Total 14 questions
Log4j interview questions and answers - Total 35 questions
Java Mail interview questions and answers - Total 27 questions
Java Applet interview questions and answers - Total 29 questions
Google Gson interview questions and answers - Total 8 questions
Java 21 interview questions and answers - Total 21 questions
Struts interview questions and answers - Total 84 questions
RMI interview questions and answers - Total 31 questions
Apache Camel interview questions and answers - Total 20 questions
Java Support interview questions and answers - Total 30 questions
JAXB interview questions and answers - Total 18 questions
JSP interview questions and answers - Total 49 questions
J2EE interview questions and answers - Total 25 questions
JUnit interview questions and answers - Total 24 questions
Apache Tapestry interview questions and answers - Total 9 questions
Java Concurrency interview questions and answers - Total 30 questions
Java OOPs interview questions and answers - Total 30 questions
JDBC interview questions and answers - Total 27 questions
Java 11 interview questions and answers - Total 24 questions
Java Garbage Collection interview questions and answers - Total 30 questions
Spring Framework interview questions and answers - Total 53 questions
Java Swing interview questions and answers - Total 27 questions
Java Design Patterns interview questions and answers - Total 15 questions
JPA interview questions and answers - Total 41 questions
Hibernate interview questions and answers - Total 52 questions
JMS interview questions and answers - Total 64 questions
JSF interview questions and answers - Total 24 questions
Java 8 interview questions and answers - Total 30 questions
Java 17 interview questions and answers - Total 20 questions
Servlets interview questions and answers - Total 34 questions
EJB interview questions and answers - Total 80 questions
Java Beans interview questions and answers - Total 57 questions
Spring Boot interview questions and answers - Total 50 questions
Kotlin interview questions and answers - Total 30 questions
Java Exception Handling interview questions and answers - Total 30 questions
Pega interview questions and answers - Total 30 questions
ITIL interview questions and answers - Total 25 questions
Finance interview questions and answers - Total 30 questions
JIRA interview questions and answers - Total 30 questions
SAP MM interview questions and answers - Total 30 questions
SAP ABAP interview questions and answers - Total 24 questions
SCCM interview questions and answers - Total 30 questions
Tally interview questions and answers - Total 30 questions
iOS interview questions and answers - Total 52 questions
Ionic interview questions and answers - Total 32 questions
Android interview questions and answers - Total 14 questions
Mobile Computing interview questions and answers - Total 20 questions
Xamarin interview questions and answers - Total 31 questions
Business Analyst interview questions and answers - Total 40 questions
DevOps interview questions and answers - Total 45 questions
Algorithm interview questions and answers - Total 50 questions
Accounting interview questions and answers - Total 30 questions
SSB interview questions and answers - Total 30 questions
Splunk interview questions and answers - Total 30 questions
JSON interview questions and answers - Total 16 questions
OSPF interview questions and answers - Total 30 questions
Sqoop interview questions and answers - Total 30 questions
Computer Graphics interview questions and answers - Total 25 questions
Scrum Master interview questions and answers - Total 30 questions
Accounts Payable interview questions and answers - Total 30 questions
IoT interview questions and answers - Total 30 questions
Insurance interview questions and answers - Total 30 questions
XML interview questions and answers - Total 25 questions
Bitcoin interview questions and answers - Total 30 questions
Laravel interview questions and answers - Total 30 questions
GraphQL interview questions and answers - Total 32 questions
Active Directory interview questions and answers - Total 30 questions
Apache Kafka interview questions and answers - Total 38 questions
Tableau interview questions and answers - Total 20 questions
Kubernetes interview questions and answers - Total 30 questions
Microservices interview questions and answers - Total 30 questions
Adobe AEM interview questions and answers - Total 50 questions
Fashion Designer interview questions and answers - Total 20 questions
Desktop Support interview questions and answers - Total 30 questions
IAS interview questions and answers - Total 56 questions
OOPs interview questions and answers - Total 30 questions
PHP OOPs interview questions and answers - Total 30 questions
Linked List interview questions and answers - Total 15 questions
SharePoint interview questions and answers - Total 28 questions
Nursing interview questions and answers - Total 40 questions
Dynamic Programming interview questions and answers - Total 30 questions
CICS interview questions and answers - Total 30 questions
Yoga Teachers Training interview questions and answers - Total 30 questions
Language in C interview questions and answers - Total 80 questions
Behavioral interview questions and answers - Total 29 questions
School Teachers interview questions and answers - Total 25 questions
Digital Marketing interview questions and answers - Total 40 questions
Apache Spark interview questions and answers - Total 24 questions
Full-Stack Developer interview questions and answers - Total 60 questions
Statistics interview questions and answers - Total 30 questions
System Design interview questions and answers - Total 30 questions
VISA interview questions and answers - Total 30 questions
IIS interview questions and answers - Total 30 questions
ANT interview questions and answers - Total 10 questions
SEO interview questions and answers - Total 51 questions
Cloud Computing interview questions and answers - Total 42 questions
BPO interview questions and answers - Total 48 questions
Google Analytics interview questions and answers - Total 30 questions
HR Questions interview questions and answers - Total 49 questions
REST API interview questions and answers - Total 52 questions
Control System interview questions and answers - Total 28 questions
Agile Methodology interview questions and answers - Total 30 questions
SAS interview questions and answers - Total 24 questions
Content Writer interview questions and answers - Total 30 questions
Hadoop interview questions and answers - Total 40 questions
Blockchain interview questions and answers - Total 29 questions
Mainframe interview questions and answers - Total 20 questions
Banking interview questions and answers - Total 20 questions
Technical Support interview questions and answers - Total 30 questions
Checkpoint interview questions and answers - Total 20 questions
Nature interview questions and answers - Total 20 questions
Docker interview questions and answers - Total 30 questions
Sales interview questions and answers - Total 30 questions
Chemistry interview questions and answers - Total 50 questions
SDLC interview questions and answers - Total 75 questions
Cryptography interview questions and answers - Total 40 questions
Interview Tips interview questions and answers - Total 30 questions
RPA interview questions and answers - Total 26 questions
College Teachers interview questions and answers - Total 30 questions
Memcached interview questions and answers - Total 28 questions
GIT interview questions and answers - Total 30 questions
Blue Prism interview questions and answers - Total 20 questions
JCL interview questions and answers - Total 20 questions
JavaScript interview questions and answers - Total 59 questions
Ajax interview questions and answers - Total 58 questions
Express.js interview questions and answers - Total 30 questions
Ansible interview questions and answers - Total 30 questions
ES6 interview questions and answers - Total 30 questions
Electron.js interview questions and answers - Total 24 questions
RxJS interview questions and answers - Total 29 questions
NodeJS interview questions and answers - Total 30 questions
jQuery interview questions and answers - Total 22 questions
ExtJS interview questions and answers - Total 50 questions
Vue.js interview questions and answers - Total 30 questions
Svelte.js interview questions and answers - Total 30 questions
Shell Scripting interview questions and answers - Total 50 questions
Next.js interview questions and answers - Total 30 questions
TypeScript interview questions and answers - Total 38 questions
Knockout JS interview questions and answers - Total 25 questions
PowerShell interview questions and answers - Total 27 questions
Terraform interview questions and answers - Total 30 questions
Ethical Hacking interview questions and answers - Total 40 questions
Cyber Security interview questions and answers - Total 50 questions
PII interview questions and answers - Total 30 questions
Data Protection Act interview questions and answers - Total 20 questions
BGP interview questions and answers - Total 30 questions
Tomcat interview questions and answers - Total 16 questions
Glassfish interview questions and answers - Total 8 questions
Ubuntu interview questions and answers - Total 30 questions
Linux interview questions and answers - Total 43 questions
Unix interview questions and answers - Total 105 questions
Weblogic interview questions and answers - Total 30 questions
QTP interview questions and answers - Total 44 questions
Cucumber interview questions and answers - Total 30 questions
TestNG interview questions and answers - Total 38 questions
Postman interview questions and answers - Total 30 questions
SDET interview questions and answers - Total 30 questions
Selenium interview questions and answers - Total 40 questions
Quality Assurance interview questions and answers - Total 56 questions
Kali Linux interview questions and answers - Total 29 questions
UiPath interview questions and answers - Total 38 questions
Mobile Testing interview questions and answers - Total 30 questions
API Testing interview questions and answers - Total 30 questions
Appium interview questions and answers - Total 30 questions
ETL Testing interview questions and answers - Total 20 questions
CSS interview questions and answers - Total 74 questions
Ruby On Rails interview questions and answers - Total 74 questions
Angular interview questions and answers - Total 50 questions
Yii interview questions and answers - Total 30 questions
PHP interview questions and answers - Total 27 questions
Oracle JET(OJET) interview questions and answers - Total 54 questions
Zend Framework interview questions and answers - Total 24 questions
Frontend Developer interview questions and answers - Total 30 questions
RichFaces interview questions and answers - Total 26 questions
HTML interview questions and answers - Total 27 questions
Flutter interview questions and answers - Total 25 questions
React interview questions and answers - Total 40 questions
React Native interview questions and answers - Total 26 questions
CakePHP interview questions and answers - Total 30 questions
Angular JS interview questions and answers - Total 21 questions
Angular 8 interview questions and answers - Total 32 questions
Web Developer interview questions and answers - Total 50 questions
Dojo interview questions and answers - Total 23 questions
GWT interview questions and answers - Total 27 questions
Symfony interview questions and answers - Total 30 questions
©2024 WithoutBook