Walking Tree PAY Roll/Compensation Manager Interview Questions and Answers

Generator functions are functions that can be paused and resumed, allowing for lazy evaluation of data.

• Generator functions use the yield keyword to pause execution and return a value.

• They can be used to generate an infinite sequence of values.

• They are memory efficient as they only generate values when needed.

• Example: function* myGenerator() { yield 1; yield 2; yield 3; }

• Example: const infiniteGenerator = function*() { ...read more

Push notifications can be implemented in Android and iOS using Firebase Cloud Messaging (FCM) and Apple Push Notification service (APNs) respectively.

• For Android, integrate FCM SDK in the app and use FCM console to send notifications.

• For iOS, create an APNs certificate, configure the app to receive notifications, and use APNs to send notifications.

• Both platforms require handling of notification payload in the app to di...read more

I used React Native for my last app.

• Developed UI components using React Native

• Integrated APIs to fetch and display data

• Implemented Redux for state management

• Used Firebase for authentication and database

• Optimized app performance using React Native Debugger

Functional components are stateless and return UI elements based on input props, while non-functional components have state and can change UI based on user interaction.

• Functional components are simpler and easier to test than non-functional components.

• Non-functional components can have state and lifecycle methods, while functional components cannot.

• Examples of functional components include buttons, labels, and icons, w...read more

API testing methods involve functional, performance, security, and exploratory testing.

• Functional testing ensures that the API meets the requirements and specifications.

• Performance testing checks the API's response time, throughput, and resource utilization.

• Security testing verifies the API's authentication, authorization, and encryption mechanisms.

• Exploratory testing involves ad-hoc testing to discover defects and usa...read more

Sanity and Smoke are types of software testing. Sanity tests a specific functionality while Smoke tests the entire system.

• Sanity testing is a narrow and deep testing approach while Smoke testing is a broad and shallow testing approach.

• Sanity testing is performed after a small change in code while Smoke testing is performed after a major change in code.

• Sanity testing is used to check if the critical functionalities are ...read more