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I applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
Export types in ReactJS allow components, functions, and variables to be accessed and used in other files.
Exporting a component allows it to be imported and used in other files
Exporting a function allows it to be imported and used in other files
Exporting a variable allows it to be imported and used in other files
Hooks are functions that allow you to use state and other React features without writing a class.
useState is a hook that allows you to add state to functional components.
useEffect is a hook that allows you to perform side effects in functional components.
Hooks can only be used in functional components.
Hooks must be called at the top level of a functional component.
Hooks can be used to replace lifecycle methods in class
The 'this' keyword in JS refers to the object that is currently executing the code.
The value of 'this' depends on how a function is called.
In a method, 'this' refers to the object that the method belongs to.
In a regular function, 'this' refers to the global object (window in a browser).
In an event handler, 'this' refers to the element that triggered the event.
The value of 'this' can be explicitly set using call(), appl
setState is a method used in React to update the state of a component.
setState is asynchronous and batched for performance optimization.
It merges the new state with the previous state.
It schedules a re-render of the component and its children.
Passing a function to setState ensures the previous state is used correctly.
Example: this.setState({ count: this.state.count + 1 })
Answer to a React Developer interview question about class and functional components and passing props.
Class component: class MyComponent extends React.Component {}
Functional component: const MyComponent = (props) => {}
Passing props from parent to child:
Promises are a way to handle asynchronous operations in JavaScript. Promise.all is used to execute multiple promises concurrently.
Promises represent a value that may not be available yet
They have three states: pending, fulfilled, and rejected
Promise.all takes an array of promises and returns a new promise that resolves when all promises in the array have resolved
If any promise in the array is rejected, the returned pro...
ES6 features: Spread Operator, Rest Parameter, Object Destructuring
Spread Operator: allows an iterable to be expanded into individual elements
Rest Parameter: allows a function to accept an indefinite number of arguments as an array
Object Destructuring: allows extracting properties from an object and assigning them to variables
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I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.
I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.
I applied via Referral and was interviewed before Apr 2021. There were 2 interview rounds.
Puzzles, Psychometric Test
I applied via Company Website and was interviewed before Jun 2021. There were 2 interview rounds.
First round was coding as well as aptitude done together went well I guess focusing on codes helps a lot.
I was interviewed before Jun 2016.
I am a passionate software developer with 5 years of experience in web development and a strong background in computer science.
5 years of experience in web development
Strong background in computer science
Passionate about software development
To separate personal and professional calls, and to ensure availability and accessibility.
Separate personal and professional calls
Ensure availability and accessibility
Maintain work-life balance
Avoid mixing personal and work-related contacts
I was interviewed in Sep 2016.
I am a passionate software developer with experience in Java, Python, and web development.
Experienced in Java, Python, and web development technologies
Strong problem-solving skills and ability to work in a team
Completed multiple projects including a web-based inventory management system
I was interviewed in May 2017.
I was interviewed in Jun 2017.
I was interviewed in May 2017.
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