Newgen Software Technologies Interview Questions, Process, and Tips

Context in React is a way to pass data through the component tree without having to pass props down manually at every level.

• Context provides a way to share values like themes, locale preferences, etc. across the component tree.

• It helps in avoiding prop drilling, where props are passed down multiple levels of components.

• Context consists of two parts: Provider and Consumer. Provider allows components to subscribe to cont...read more

Redux is a predictable state container for JavaScript apps, commonly used with React for managing application state.

• Redux is a state management library for JavaScript applications.

• It helps in managing the state of the application in a predictable way.

• Redux stores the entire state of the application in a single immutable state tree.

• Actions are dispatched to update the state, and reducers specify how the state changes in...read more

Remove duplicates from an array of strings

• Create a new set to store unique values

• Iterate through the array and add each element to the set

• Convert the set back to an array to remove duplicates

Find the second smallest element in an array of strings.

• Convert the strings to integers for comparison.

• Sort the array in ascending order.

• Return the second element in the sorted array.

Currently working on a web application testing project for a financial services company.

• Testing various functionalities of the web application such as account management, transactions, and security features

• Creating and executing test cases to ensure the application meets requirements and is bug-free

• Collaborating with developers and business analysts to resolve issues and improve the application's quality

Use a loop to check if a number is divisible by any number other than 1 and itself.

• Iterate through numbers from 2 to n-1

• Check if n is divisible by any number in the range

• If not divisible, n is a prime number

React components can have states and props to manage data and communication between components.

• States are used to manage data that can change over time within a component.

• Props are used to pass data from parent components to child components.

• States are mutable and can be changed using setState() method.

• Props are read-only and cannot be changed by the child component.

• Example: where 'name' is