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I applied via Referral and was interviewed in Jun 2024. There were 4 interview rounds.
Cloning of a website
Using Shopify API to convert Assignment 1 into a headless website with integration to shopify
Machine learning algorithms are used to analyze data, make predictions, and automate decision-making processes.
Machine learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning.
Examples of machine learning algorithms include linear regression, decision trees, support vector machines, and neural networks.
These algorithms require training data to learn patterns and make predictions.
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Implementing pagination on scroll allows for loading more content as the user reaches the bottom of the page.
Use a scroll event listener to detect when the user has reached the bottom of the page
Make an API call to fetch more data when the bottom is reached
Append the new data to the existing content on the page
Immediately invoked function expressions (IIFE) are functions that are executed immediately after they are created.
IIFE is defined and invoked at the same time using parentheses at the end of the function declaration.
Anonymous functions do not have a name and can be used as IIFE by wrapping them in parentheses.
IIFE is commonly used to create a private scope for variables and functions.
Closures are functions that have access to variables from their outer scope even after the outer function has finished executing.
Closures allow functions to access variables from their parent function even after the parent function has returned
They help in creating private variables and functions in JavaScript
Closures are commonly used in event handlers and callbacks
A promise is an object representing the eventual completion or failure of an asynchronous operation.
Promises are used to handle asynchronous operations in JavaScript.
They can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained using .then() method to handle success and failure callbacks.
Example: Fetch API returns a promise when making an HTTP request.
Lazy loading is a technique used in web development to defer loading non-essential resources until they are needed.
Lazy loading helps improve page load times by only loading resources when they are required.
It is commonly used for images, videos, and other media files on a webpage.
Lazy loading can be implemented using JavaScript libraries like Intersection Observer or by using native browser features like loading='lazy
I applied via Approached by Company and was interviewed in Dec 2024. There was 1 interview round.
Data binding is the automatic synchronization of data between the model and view components in an application.
Data binding allows for the seamless updating of data in the model to be reflected in the view and vice versa.
There are two-way data binding and one-way data binding.
Two-way data binding updates the model and view simultaneously, while one-way data binding updates in one direction only.
Example: In Angular, usin...
Lazy loading is a technique used to defer loading of non-essential resources until they are actually needed.
Lazy loading helps improve performance by only loading resources when they are required.
In Angular, lazy loading is commonly used for loading modules on demand rather than loading everything upfront.
Lazy loading can be implemented using Angular's RouterModule and loadChildren feature.
posted on 10 Dec 2024
I applied via Approached by Company and was interviewed in Nov 2024. There were 2 interview rounds.
Virtual DOM is a lightweight copy of the actual DOM, React key features include component-based architecture, declarative syntax, and virtual DOM, React Hooks are functions that let you use state and other React features without writing a class.
Virtual DOM is a lightweight copy of the actual DOM that React uses to improve performance by updating only the necessary parts of the DOM.
Key features of React include componen...
I applied via Naukri.com and was interviewed in Aug 2024. There were 2 interview rounds.
Online Hackathon test was taken.
I am a passionate React Js Frontend Developer with experience in building user-friendly and responsive web applications.
Experienced in developing web applications using React Js
Proficient in HTML, CSS, and JavaScript
Familiar with state management libraries like Redux
Strong understanding of responsive design principles
Ability to work collaboratively in a team environment
I am responsible for developing and maintaining the frontend of the project using React Js.
Developing user-friendly interfaces using React Js
Implementing responsive design and ensuring cross-browser compatibility
Collaborating with backend developers to integrate frontend with backend services
Optimizing application performance and troubleshooting issues
Participating in code reviews and providing feedback to team members
SSR in React is implemented using server-side rendering to pre-render React components on the server before sending them to the client.
Use libraries like Next.js or Gatsby to implement SSR in React.
Configure server to render React components on the server side.
Optimize server-side rendering for performance by caching rendered components.
To change a React project from development mode to production mode, you need to build the project using the 'npm run build' command.
Run 'npm run build' command in the terminal to create a production build of the project.
This command will generate a 'build' folder with optimized and minified files for production.
You can then deploy the contents of the 'build' folder to a web server for production use.
Lazy loading is a technique used to defer loading non-essential resources until they are needed.
Lazy loading helps improve performance by only loading resources when they are required.
In React, lazy loading can be implemented using React.lazy() and Suspense components.
Example: const MyComponent = React.lazy(() => import('./MyComponent'));
Example:
React routing is a way to handle navigation in a React application by defining routes and rendering components based on the URL.
React routing allows for declarative routing, where routes are defined using JSX elements.
It enables dynamic routing based on the URL, allowing for different components to be rendered based on the route.
React Router is a popular library for handling routing in React applications.
Unlike convent...
posted on 14 Sep 2024
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
A closure is a function that has access to its own scope, as well as the scope in which it was defined.
A closure allows a function to access variables from its outer function even after the outer function has finished executing.
Closures are created whenever a function is defined within another function.
Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVa
Async/await is a feature in JavaScript that allows for asynchronous code to be written in a synchronous manner.
Async/await is built on top of promises and provides a more readable and concise way to work with asynchronous code.
The 'async' keyword is used to define a function as asynchronous, allowing it to use the 'await' keyword inside it.
When 'await' is used, it pauses the execution of the function until the promise ...
Use Set to remove duplicates from array of strings.
Create a Set from the array to automatically remove duplicates
Convert the Set back to an array if needed
Example: const arr = ['apple', 'banana', 'apple', 'orange']; const uniqueArr = [...new Set(arr)];
React DOM updates by comparing the virtual DOM with the actual DOM and only updating the necessary components.
React creates a virtual DOM to represent the UI components.
When a state or prop changes, React re-renders the virtual DOM.
React then compares the virtual DOM with the actual DOM to identify the differences.
Only the necessary components are updated in the actual DOM, minimizing performance impact.
React Hooks are functions that let you use state and other React features without writing a class.
React Hooks were introduced in React 16.8.
They allow you to use state and other React features in functional components.
Some commonly used hooks are useState, useEffect, useContext, and useRef.
Hooks make it easier to reuse logic across components.
Hooks can be used to manage component state, perform side effects, and more.
Call, bind, and apply are methods used to manipulate the value of 'this' in JavaScript functions.
Call - invokes a function with a specified 'this' value and arguments provided individually.
Bind - creates a new function that, when called, has its 'this' keyword set to the provided value.
Apply - invokes a function with a specified 'this' value and arguments provided as an array.
Redux Toolkit is a set of tools and best practices to simplify Redux development, while Redux is a predictable state container for JavaScript apps.
Redux Toolkit provides a set of tools like createSlice, createAsyncThunk, and configureStore to simplify Redux setup and reduce boilerplate code.
Redux Toolkit includes immer library for writing immutable update logic in a more convenient way.
Redux Toolkit also includes a def...
Writing a RTL test to check a button in React
Use the render and fireEvent functions from @testing-library/react
Find the button element using getByRole('button')
Simulate a click event using fireEvent.click
Assert that the button is visible and clickable
Inline and block level elements in HTML/CSS
Inline elements flow in the document in a line, without starting a new line. Examples include , , .
Block level elements start on a new line and take up the full width available. Examples include
,
Microtasks in JavaScript are tasks that are executed asynchronously and have higher priority than regular tasks.
Microtasks are scheduled to run after the current script has finished but before the browser has a chance to render.
They are often used with promises, as promise callbacks are executed as microtasks.
Microtasks are executed in the same event loop iteration as regular tasks, but before the next rendering.
Exampl...
Custom hooks are reusable functions that allow you to extract component logic into separate functions.
Custom hooks are prefixed with 'use' and can call other hooks if needed.
They can be used to share logic between components without duplicating code.
Custom hooks can be created for any kind of logic, such as fetching data, managing state, or handling side effects.
Redux is a predictable state container for JavaScript apps. It helps manage the state of an application in a centralized store.
Create a Redux store to hold the state of the application
Define actions to describe state changes
Write reducers to specify how the state changes in response to actions
Dispatch actions to update the state in the store
Connect components to the Redux store using the connect function from react-red
Redux is a predictable state container for JavaScript apps.
Actions are dispatched to the store
Reducers specify how the state changes in response to actions
Store holds the state of the application
Components can subscribe to the store to access state
Dependency Injection is a design pattern in which a class receives its dependencies from external sources rather than creating them itself.
Allows for easier testing by injecting mock dependencies
Promotes reusability and modularity by decoupling components
Reduces code duplication by centralizing dependency creation
Example: Angular uses Dependency Injection to provide services to components
Routing is the process of navigating between different pages or views in a web application.
Routing allows users to move between different parts of a web application without reloading the entire page
It is implemented using a router module in Angular, which maps URLs to components
Routes can have parameters that can be passed to components for dynamic content
Routing can be used to create single-page applications (SPAs) wh
Coding a frontend UI from provided image. And creating a fucntional star rating system
Designing a Component API in React using Typescript involves defining props, state, and methods for the component.
Define the props interface to specify the expected input data for the component
Use typescript types to ensure type safety and prevent runtime errors
Define the state interface to manage the internal state of the component
Implement methods to handle user interactions and component logic
Document the component
Function to clear all timer ids at once
Create an array to store all timer ids
Iterate through the array and clear each timer id using clearTimeout() function
I applied via LinkedIn and was interviewed in Nov 2024. There were 2 interview rounds.
They asked JS basics and Promises, hoisting
Just asked about my work culture, as I worked in startup and product based company, they except me work in Agile and how u will adopt to MNC / service based company culture
TCS
Accenture
Infosys
Wipro