TO THE NEW Front end Developer Interview Questions and Answers

Q1. What is bridge? What is the new architecture?
Ans. 
Bridge is a structural design pattern that decouples an abstraction from its implementation. The new architecture refers to modern design patterns and technologies used in software development.
• Bridge pattern allows the client code to work with different implementations of an interface independently.

• The new architecture in front end development may include concepts like component-based architecture, state management lib...read more
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Q2. How will you optimize a react native app
Ans. 
Optimizing a React Native app involves reducing bundle size, improving performance, and enhancing user experience.
• Use code splitting to reduce initial load time

• Optimize images and assets for smaller file sizes

• Implement lazy loading for components that are not immediately visible

• Minimize the use of third-party libraries and only include necessary dependencies

• Utilize performance monitoring tools like React Native Perform
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Q3. What is context API
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.
• Context API provides a way to pass data through the component tree without having to pass props down manually at every level.

• It is useful for sharing global data such as themes, user authentication, or language preferences.

• Context API consists of three main parts: Provider...read more
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Q4. What is hoisting
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during compilation.
• Variable declarations are hoisted to the top of their scope, but not their initializations.

• Function declarations are fully hoisted, including their definitions.

• Hoisting can lead to unexpected behavior if not understood properly.
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Q1. Angular basics regarding lifecycle hooks, rxjs, data bindingetc
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Q2. Coding to find the common characters comparing 3 strings
Ans. 
Finding common characters in 3 strings using coding
• Create a function that takes in 3 strings as input

• Iterate through each character of the first string and check if it exists in the other 2 strings

• Store the common characters in an array and return it
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1 hr -duration and Question is Full of basics and technology what we have used

Q1. Prev job exp details
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Q1. All about the front end basic questions
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Q2. What are all basic CSS properties
Ans. 
Basic CSS properties include color, font-size, margin, padding, and display.
• color

• font-size

• margin

• padding

• display
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Q3. Basic question on javascript
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Q1. Basic JS & React JS question
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Q1. Advance level of JS and React related question and coding skills test as well.
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Q1. What are your salary expectations?
Ans. 
I am open to discussing salary based on the responsibilities and requirements of the position.
• I am flexible and open to negotiation.

• I am looking for a fair and competitive salary.

• I am more interested in the overall compensation package rather than a specific number.

• I would like to be compensated based on my skills, experience, and the value I can bring to the company.
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Q1. Display a list of items using Pagination concept in React using any online coding editor.
Ans. 
Display a list of items using Pagination concept in React
• Create a list of items to display

• Implement pagination logic to display a limited number of items per page

• Add navigation buttons to switch between pages
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Q2. Check if pair sum exists in the array (Two Sum)?
Ans. 
Check if pair sum exists in the array using a hash map.
• Use a hash map to store the difference between the target sum and each element in the array.

• Iterate through the array and check if the current element exists in the hash map.

• Return true if a pair sum exists, otherwise return false.
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Q3. React LifeCycle?
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Q4. How do you improve the performance of a website?
Ans. 
Improving website performance involves optimizing code, reducing server requests, using caching, and optimizing images.
• Optimize code by minifying CSS, JavaScript, and HTML

• Reduce server requests by combining files and using asynchronous loading

• Utilize caching techniques like browser caching and server-side caching

• Optimize images by resizing, compressing, and using modern image formats like WebP
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Q5. What is NextJS?
Ans. 
NextJS is a React framework that allows for server-side rendering and static site generation.
• NextJS is built on top of React, providing features like server-side rendering and static site generation.

• It simplifies the process of building React applications by handling routing, code splitting, and more out of the box.

• NextJS also supports API routes for serverless functions and data fetching.

• It offers features like automa...read more
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