Livlong Insurance Brokers Front end Developer Interview Questions and Answers

Q1. It was a array question. I was told to return a object from a function which would contain getting all the array elements, adding a element, deleting a element. The test was on hacker rank.
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Q1. This was basically a one on one round. I was asked basics of HTML, CSS and React. Questions like Hoisting, Prop Drilling, Context API. Not only do you need to know what the topics are. But I was asked to i...read more
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Q1. Basic Company Details and Salary Negotiations
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Was given a bar raiser round where been asked problems on dp, create a crud shopping cart type webapp in react, and one css problem to align all boxes across diagonal

Mostly around resume and performance optimisation

Q1. Verbally design infinte scroll in react
Ans. 
Implementing infinite scroll in React involves dynamically loading content as the user scrolls down the page.
• Use a scroll event listener to detect when the user reaches the bottom of the page

• Fetch more data from the server and append it to the existing content

• Update the state to reflect the new content and trigger a re-render of the component
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Q2. Flatten array deeply nested
Ans. 
Flatten deeply nested array of strings
• Use recursion to iterate through each element in the array

• Check if each element is an array, if so, recursively call the function

• Concatenate the strings from each nested array into a single flat array
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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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What is HTTPS and how it work in backend creation

Q1. Tell me something about your past job
Ans. What is MVC in Website operation
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Q2. Why do you want to join us
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Q1. Small UI task using Vue.js
Ans. 
Create a small UI task using Vue.js
• Create a simple form with input fields and a submit button

• Use Vue.js directives like v-model for data binding

• Implement validation for the form fields

• Display a success message upon form submission
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Q2. Find the second largest number
Ans. 
Iterate through the array to find the second largest number
• Iterate through the array and keep track of the largest and second largest numbers

• Compare each element with the largest and second largest numbers to update them accordingly

• Return the second largest number once the iteration is complete
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Q1. Test interview test interview
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Q2. Test interview with next level questions
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Q1. Is multiple inheritance supported in Java
Ans. 
No, Java does not support multiple inheritance.
• Java only supports single inheritance through classes.

• However, multiple inheritance can be achieved through interfaces.

• Diamond problem can be avoided in interfaces by implementing default methods.

• Example: class A extends B implements C, D {}
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Q2. No, it is supported through interfaces only .
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Q1. What is react js
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