Applaunch Front end Developer Interview Questions and Answers

Round duration - 360 minutes
Round difficulty - Medium

Basically TCS conduct its flagship event named as CODEVITA . And it offers Internship to prefinal (3rd )year students .

Q1. 
Allocate Books Problem Statement
Given an array of integers arr, where arr[i] represents the number of pages in the i-th book, and an integer m representing the number of students, allocate all the books ...read more
Ans. 
Allocate books to students in a way that minimizes the maximum number of pages assigned to a student.
• Iterate through possible allocations and calculate the maximum pages assigned to a student.

• Find the minimum of these maximums to get the optimal allocation.

• Return the minimum pages allocated in each test case, or -1 if not possible.
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Reasoning logocial thing topics

Coding text web developer development

Q1. Self,and, Javascript
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Q2. HTML,css,ms.word
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Q3. Communication skills
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Q4. Work process group discussion
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Q1. How you can improve performance in Angular App
Ans. 
Improving performance in Angular app involves optimizing code, reducing HTTP requests, lazy loading modules, and using AOT compilation.
• Optimize code by avoiding unnecessary watchers and using track by in ngFor loops

• Reduce HTTP requests by combining multiple requests into one using HTTP interceptors

• Lazy load modules to only load components when needed, improving initial load time

• Use Ahead-of-Time (AOT) compilation to pr
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Q1. This is often the first question. Focus on your professional background, your key skills, and how your experiences align with the job you're applying for.
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Q2. Show that you’ve done your research about the company. Talk about how your values align with the company’s mission, and why the role interests you.
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Q1. How does React native works internally? Like alloting memory to rendering JS code on android and ios devices.
Ans. 
React Native works by using a bridge to communicate between JavaScript and native code on iOS and Android devices.
• React Native uses a JavaScript thread to handle logic and a separate thread for UI rendering.

• The bridge allows for communication between the JavaScript thread and native code on the device.

• React Native uses a virtual DOM to optimize rendering performance.

• Memory allocation is handled by the device's operatin...read more
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Q2. Do you know about React middlewares? why are they used?
Ans. 
React middlewares are functions that intercept and modify requests and responses in a React application.
• Middlewares are used to add additional functionality to an application without modifying the core code.

• They can be used for authentication, logging, error handling, and more.

• Examples of React middlewares include Redux Thunk, Redux Saga, and React Router.

• They are typically implemented using higher-order functions.

• Midd...read more
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Q3. Do you know about React Native Context Api?
Ans. 
Yes, React Native Context API is a way to manage global state in React Native applications.
• Context API allows passing data through the component tree without having to pass props down manually at every level.

• It is useful for managing global state such as user authentication, theme, and language preferences.

• Context API consists of two parts: the Provider component and the Consumer component.

• The Provider component is use...read more
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Q4. React Native Functional components lifecycle methods?
Ans. 
React Native functional components have limited lifecycle methods compared to class components.
• Functional components use useEffect() instead of componentDidMount() and componentDidUpdate()

• useEffect() can be used to handle component mount, update, and unmount

• useEffect() takes a callback function and an array of dependencies as arguments

• The callback function can return a cleanup function to handle component unmount

• Functi...read more
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Q5. App store and playstore publishing related questions.
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